DPDK  21.11.8
examples/performance-thread/l3fwd-thread/main.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2016 Intel Corporation
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#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 <sched.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_eal.h>
#include <rte_launch.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_random.h>
#include <rte_debug.h>
#include <rte_ether.h>
#include <rte_ethdev.h>
#include <rte_ring.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_ip.h>
#include <rte_tcp.h>
#include <rte_udp.h>
#include <rte_string_fns.h>
#include <rte_pause.h>
#include <rte_timer.h>
#include <cmdline_parse.h>
#include <cmdline_parse_etheraddr.h>
#include <lthread_api.h>
#define APP_LOOKUP_EXACT_MATCH 0
#define APP_LOOKUP_LPM 1
#define DO_RFC_1812_CHECKS
/* Enable cpu-load stats 0-off, 1-on */
#define APP_CPU_LOAD 1
#ifndef APP_LOOKUP_METHOD
#define APP_LOOKUP_METHOD APP_LOOKUP_LPM
#endif
#ifndef __GLIBC__ /* sched_getcpu() is glibc specific */
#define sched_getcpu() rte_lcore_id()
#endif
static int
check_ptype(int portid)
{
int i, ret;
int ipv4 = 0, ipv6 = 0;
ret = rte_eth_dev_get_supported_ptypes(portid, RTE_PTYPE_L3_MASK, NULL,
0);
if (ret <= 0)
return 0;
uint32_t ptypes[ret];
ret = rte_eth_dev_get_supported_ptypes(portid, RTE_PTYPE_L3_MASK,
ptypes, ret);
for (i = 0; i < ret; ++i) {
if (ptypes[i] & RTE_PTYPE_L3_IPV4)
ipv4 = 1;
if (ptypes[i] & RTE_PTYPE_L3_IPV6)
ipv6 = 1;
}
if (ipv4 && ipv6)
return 1;
return 0;
}
static inline void
parse_ptype(struct rte_mbuf *m)
{
struct rte_ether_hdr *eth_hdr;
uint32_t packet_type = RTE_PTYPE_UNKNOWN;
uint16_t ether_type;
eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
ether_type = eth_hdr->ether_type;
if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
m->packet_type = packet_type;
}
static uint16_t
cb_parse_ptype(__rte_unused uint16_t port, __rte_unused uint16_t queue,
struct rte_mbuf *pkts[], uint16_t nb_pkts,
__rte_unused uint16_t max_pkts, __rte_unused void *user_param)
{
unsigned int i;
for (i = 0; i < nb_pkts; i++)
parse_ptype(pkts[i]);
return nb_pkts;
}
/*
* When set to zero, simple forwarding path is enabled.
* When set to one, optimized forwarding path is enabled.
* Note that LPM optimisation path uses SSE4.1 instructions.
*/
#define ENABLE_MULTI_BUFFER_OPTIMIZE 1
#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
#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*nb_rxd + \
nb_ports*nb_lcores*MAX_PKT_BURST + \
nb_ports*n_tx_queue*nb_txd + \
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 BURST_SIZE MAX_TX_BURST
#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 1024
#define RTE_TEST_TX_DESC_DEFAULT 1024
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 rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
static xmm_t 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;
static int promiscuous_on;
static int numa_on = 1;
static int parse_ptype_on;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
static int ipv6;
#endif
#if (APP_CPU_LOAD == 1)
#define MAX_CPU RTE_MAX_LCORE
#define CPU_LOAD_TIMEOUT_US (5 * 1000 * 1000)
#define CPU_PROCESS 0
#define CPU_POLL 1
#define MAX_CPU_COUNTER 2
struct cpu_load {
uint16_t n_cpu;
uint64_t counter;
uint64_t hits[MAX_CPU_COUNTER][MAX_CPU];
} __rte_cache_aligned;
static struct cpu_load cpu_load;
static int cpu_load_lcore_id = -1;
#define SET_CPU_BUSY(thread, counter) \
thread->conf.busy[counter] = 1
#define SET_CPU_IDLE(thread, counter) \
thread->conf.busy[counter] = 0
#define IS_CPU_BUSY(thread, counter) \
(thread->conf.busy[counter] > 0)
#else
#define SET_CPU_BUSY(thread, counter)
#define SET_CPU_IDLE(thread, counter)
#define IS_CPU_BUSY(thread, counter) 0
#endif
struct mbuf_table {
uint16_t len;
struct rte_mbuf *m_table[MAX_PKT_BURST];
};
struct lcore_rx_queue {
uint16_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 rx_thread_params {
uint16_t port_id;
uint8_t queue_id;
uint8_t lcore_id;
uint8_t thread_id;
} __rte_cache_aligned;
static struct rx_thread_params rx_thread_params_array[MAX_LCORE_PARAMS];
static struct rx_thread_params rx_thread_params_array_default[] = {
{0, 0, 2, 0},
{0, 1, 2, 1},
{0, 2, 2, 2},
{1, 0, 2, 3},
{1, 1, 2, 4},
{1, 2, 2, 5},
{2, 0, 2, 6},
{3, 0, 3, 7},
{3, 1, 3, 8},
};
static struct rx_thread_params *rx_thread_params =
rx_thread_params_array_default;
static uint16_t nb_rx_thread_params = RTE_DIM(rx_thread_params_array_default);
struct tx_thread_params {
uint8_t lcore_id;
uint8_t thread_id;
} __rte_cache_aligned;
static struct tx_thread_params tx_thread_params_array[MAX_LCORE_PARAMS];
static struct tx_thread_params tx_thread_params_array_default[] = {
{4, 0},
{5, 1},
{6, 2},
{7, 3},
{8, 4},
{9, 5},
{10, 6},
{11, 7},
{12, 8},
};
static struct tx_thread_params *tx_thread_params =
tx_thread_params_array_default;
static uint16_t nb_tx_thread_params = RTE_DIM(tx_thread_params_array_default);
static struct rte_eth_conf port_conf = {
.rxmode = {
.mq_mode = RTE_ETH_MQ_RX_RSS,
.split_hdr_size = 0,
.offloads = RTE_ETH_RX_OFFLOAD_CHECKSUM,
},
.rx_adv_conf = {
.rss_conf = {
.rss_key = NULL,
.rss_hf = RTE_ETH_RSS_TCP,
},
},
.txmode = {
.mq_mode = RTE_ETH_MQ_TX_NONE,
},
};
static uint32_t max_pkt_len;
static struct rte_mempool *pktmbuf_pool[NB_SOCKETS];
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
#include <rte_hash_crc.h>
#define DEFAULT_HASH_FUNC rte_hash_crc
struct ipv4_5tuple {
uint32_t ip_dst;
uint32_t ip_src;
uint16_t port_dst;
uint16_t port_src;
uint8_t proto;
} __rte_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;
} __rte_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[] = {
{{RTE_IPV4(101, 0, 0, 0), RTE_IPV4(100, 10, 0, 1), 101, 11, IPPROTO_TCP}, 0},
{{RTE_IPV4(201, 0, 0, 0), RTE_IPV4(200, 20, 0, 1), 102, 12, IPPROTO_TCP}, 1},
{{RTE_IPV4(111, 0, 0, 0), RTE_IPV4(100, 30, 0, 1), 101, 11, IPPROTO_TCP}, 2},
{{RTE_IPV4(211, 0, 0, 0), RTE_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;
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);
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;
const uint32_t *ip_src0, *ip_src1, *ip_src2, *ip_src3;
const uint32_t *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;
k = data;
t = k->proto;
p = (const uint32_t *)&k->port_src;
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);
return init_val;
}
#define IPV4_L3FWD_NUM_ROUTES RTE_DIM(ipv4_l3fwd_route_array)
#define IPV6_L3FWD_NUM_ROUTES RTE_DIM(ipv6_l3fwd_route_array)
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[] = {
{RTE_IPV4(1, 1, 1, 0), 24, 0},
{RTE_IPV4(2, 1, 1, 0), 24, 1},
{RTE_IPV4(3, 1, 1, 0), 24, 2},
{RTE_IPV4(4, 1, 1, 0), 24, 3},
{RTE_IPV4(5, 1, 1, 0), 24, 4},
{RTE_IPV4(6, 1, 1, 0), 24, 5},
{RTE_IPV4(7, 1, 1, 0), 24, 6},
{RTE_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 RTE_DIM(ipv4_l3fwd_route_array)
#define IPV6_L3FWD_NUM_ROUTES RTE_DIM(ipv6_l3fwd_route_array)
#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 {
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
void *data;
} __rte_cache_aligned;
static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
RTE_DEFINE_PER_LCORE(struct lcore_conf *, lcore_conf);
#define MAX_RX_QUEUE_PER_THREAD 16
#define MAX_TX_PORT_PER_THREAD RTE_MAX_ETHPORTS
#define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
#define MAX_RX_QUEUE_PER_PORT 128
#define MAX_RX_THREAD 1024
#define MAX_TX_THREAD 1024
#define MAX_THREAD (MAX_RX_THREAD + MAX_TX_THREAD)
static int lthreads_on = 1;
uint16_t rx_counter;
uint16_t tx_counter;
struct thread_conf {
uint16_t lcore_id;
uint16_t cpu_id;
uint16_t thread_id;
#if (APP_CPU_LOAD > 0)
int busy[MAX_CPU_COUNTER];
#endif
};
struct thread_rx_conf {
struct thread_conf conf;
uint16_t n_rx_queue;
struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
uint16_t n_ring;
struct rte_ring *ring[RTE_MAX_LCORE];
struct lthread_cond *ready[RTE_MAX_LCORE];
#if (APP_CPU_LOAD > 0)
int busy[MAX_CPU_COUNTER];
#endif
} __rte_cache_aligned;
uint16_t n_rx_thread;
struct thread_rx_conf rx_thread[MAX_RX_THREAD];
struct thread_tx_conf {
struct thread_conf conf;
uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
struct rte_ring *ring;
struct lthread_cond **ready;
} __rte_cache_aligned;
uint16_t n_tx_thread;
struct thread_tx_conf tx_thread[MAX_TX_THREAD];
/* Send burst of packets on an output interface */
static inline int
send_burst(struct thread_tx_conf *qconf, uint16_t n, uint16_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, uint16_t port)
{
uint16_t len;
struct thread_tx_conf *qconf;
if (lthreads_on)
qconf = (struct thread_tx_conf *)lthread_get_data();
else
qconf = (struct thread_tx_conf *)RTE_PER_LCORE(lcore_conf)->data;
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) && \
(ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
static __rte_always_inline void
send_packetsx4(uint16_t port,
struct rte_mbuf *m[], uint32_t num)
{
uint32_t len, j, n;
struct thread_tx_conf *qconf;
if (lthreads_on)
qconf = (struct thread_tx_conf *)lthread_get_data();
else
qconf = (struct thread_tx_conf *)RTE_PER_LCORE(lcore_conf)->data;
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++;
/* fall-through */
case 3:
qconf->tx_mbufs[port].m_table[len + j] = m[j];
j++;
/* fall-through */
case 2:
qconf->tx_mbufs[port].m_table[len + j] = m[j];
j++;
/* fall-through */
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++;
/* fall-through */
case 3:
qconf->tx_mbufs[port].m_table[j] = m[n + j];
j++;
/* fall-through */
case 2:
qconf->tx_mbufs[port].m_table[j] = m[n + j];
j++;
/* fall-through */
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 rte_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 rte_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 rte_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 uint16_t
get_ipv4_dst_port(void *ipv4_hdr, uint16_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 rte_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 ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
}
static inline uint16_t
get_ipv6_dst_port(void *ipv6_hdr, uint16_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 rte_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 ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
}
#endif
#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
static inline uint16_t
get_ipv4_dst_port(void *ipv4_hdr, uint16_t portid,
lookup_struct_t *ipv4_l3fwd_lookup_struct)
{
uint32_t next_hop;
return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
rte_be_to_cpu_32(((struct rte_ipv4_hdr *)ipv4_hdr)->dst_addr),
&next_hop) == 0) ? next_hop : portid);
}
static inline uint16_t
get_ipv6_dst_port(void *ipv6_hdr, uint16_t portid,
lookup6_struct_t *ipv6_l3fwd_lookup_struct)
{
uint32_t next_hop;
return ((rte_lpm6_lookup(ipv6_l3fwd_lookup_struct,
((struct rte_ipv6_hdr *)ipv6_hdr)->dst_addr, &next_hop) == 0) ?
next_hop : portid);
}
#endif
static inline void l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid)
__rte_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], uint16_t portid)
{
struct rte_ether_hdr *eth_hdr[8];
struct rte_ipv4_hdr *ipv4_hdr[8];
uint16_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 rte_ether_hdr *);
eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct rte_ether_hdr *);
eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct rte_ether_hdr *);
eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct rte_ether_hdr *);
eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct rte_ether_hdr *);
eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct rte_ether_hdr *);
eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct rte_ether_hdr *);
eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct rte_ether_hdr *);
/* Handle IPv4 headers.*/
ipv4_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct rte_ipv4_hdr *,
sizeof(struct rte_ether_hdr));
ipv4_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct rte_ipv4_hdr *,
sizeof(struct rte_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;
uint8_t i = 0;
for (i = 0; i < 8; i++)
if ((0x1 << i) & valid_mask)
l3fwd_simple_forward(m[i], portid);
}
#endif /* End of #ifdef DO_RFC_1812_CHECKS */
data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv4_hdr, time_to_live)));
data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
sizeof(struct rte_ether_hdr) +
offsetof(struct rte_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_bulk(RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct,
&key_array[0], 8, ret);
dst_port[0] = ((ret[0] < 0) ? portid : ipv4_l3fwd_out_if[ret[0]]);
dst_port[1] = ((ret[1] < 0) ? portid : ipv4_l3fwd_out_if[ret[1]]);
dst_port[2] = ((ret[2] < 0) ? portid : ipv4_l3fwd_out_if[ret[2]]);
dst_port[3] = ((ret[3] < 0) ? portid : ipv4_l3fwd_out_if[ret[3]]);
dst_port[4] = ((ret[4] < 0) ? portid : ipv4_l3fwd_out_if[ret[4]]);
dst_port[5] = ((ret[5] < 0) ? portid : ipv4_l3fwd_out_if[ret[5]]);
dst_port[6] = ((ret[6] < 0) ? portid : ipv4_l3fwd_out_if[ret[6]]);
dst_port[7] = ((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]->dst_addr = dest_eth_addr[dst_port[0]];
*(uint64_t *)&eth_hdr[1]->dst_addr = dest_eth_addr[dst_port[1]];
*(uint64_t *)&eth_hdr[2]->dst_addr = dest_eth_addr[dst_port[2]];
*(uint64_t *)&eth_hdr[3]->dst_addr = dest_eth_addr[dst_port[3]];
*(uint64_t *)&eth_hdr[4]->dst_addr = dest_eth_addr[dst_port[4]];
*(uint64_t *)&eth_hdr[5]->dst_addr = dest_eth_addr[dst_port[5]];
*(uint64_t *)&eth_hdr[6]->dst_addr = dest_eth_addr[dst_port[6]];
*(uint64_t *)&eth_hdr[7]->dst_addr = dest_eth_addr[dst_port[7]];
/* src addr */
rte_ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_hdr[7]->src_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 rte_ether_hdr) +
offsetof(struct rte_ipv6_hdr, payload_len)));
__m128i tmpdata1 = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m0,
__m128i *, sizeof(struct rte_ether_hdr) +
offsetof(struct rte_ipv6_hdr, payload_len) +
sizeof(__m128i)));
__m128i tmpdata2 = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m0,
__m128i *, sizeof(struct rte_ether_hdr) +
offsetof(struct rte_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], uint16_t portid)
{
int32_t ret[8];
uint16_t dst_port[8];
struct rte_ether_hdr *eth_hdr[8];
union ipv6_5tuple_host key[8];
__rte_unused struct rte_ipv6_hdr *ipv6_hdr[8];
eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct rte_ether_hdr *);
eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct rte_ether_hdr *);
eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct rte_ether_hdr *);
eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct rte_ether_hdr *);
eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct rte_ether_hdr *);
eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct rte_ether_hdr *);
eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct rte_ether_hdr *);
eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct rte_ether_hdr *);
/* Handle IPv6 headers.*/
ipv6_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
ipv6_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct rte_ipv6_hdr *,
sizeof(struct rte_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_bulk(RTE_PER_LCORE(lcore_conf)->ipv6_lookup_struct,
&key_array[0], 4, ret);
dst_port[0] = ((ret[0] < 0) ? portid : ipv6_l3fwd_out_if[ret[0]]);
dst_port[1] = ((ret[1] < 0) ? portid : ipv6_l3fwd_out_if[ret[1]]);
dst_port[2] = ((ret[2] < 0) ? portid : ipv6_l3fwd_out_if[ret[2]]);
dst_port[3] = ((ret[3] < 0) ? portid : ipv6_l3fwd_out_if[ret[3]]);
dst_port[4] = ((ret[4] < 0) ? portid : ipv6_l3fwd_out_if[ret[4]]);
dst_port[5] = ((ret[5] < 0) ? portid : ipv6_l3fwd_out_if[ret[5]]);
dst_port[6] = ((ret[6] < 0) ? portid : ipv6_l3fwd_out_if[ret[6]]);
dst_port[7] = ((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]->dst_addr = dest_eth_addr[dst_port[0]];
*(uint64_t *)&eth_hdr[1]->dst_addr = dest_eth_addr[dst_port[1]];
*(uint64_t *)&eth_hdr[2]->dst_addr = dest_eth_addr[dst_port[2]];
*(uint64_t *)&eth_hdr[3]->dst_addr = dest_eth_addr[dst_port[3]];
*(uint64_t *)&eth_hdr[4]->dst_addr = dest_eth_addr[dst_port[4]];
*(uint64_t *)&eth_hdr[5]->dst_addr = dest_eth_addr[dst_port[5]];
*(uint64_t *)&eth_hdr[6]->dst_addr = dest_eth_addr[dst_port[6]];
*(uint64_t *)&eth_hdr[7]->dst_addr = dest_eth_addr[dst_port[7]];
/* src addr */
rte_ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->src_addr);
rte_ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_hdr[7]->src_addr);
send_single_packet(m[0], dst_port[0]);
send_single_packet(m[1], dst_port[1]);
send_single_packet(m[2], dst_port[2]);
send_single_packet(m[3], dst_port[3]);
send_single_packet(m[4], dst_port[4]);
send_single_packet(m[5], dst_port[5]);
send_single_packet(m[6], dst_port[6]);
send_single_packet(m[7], dst_port[7]);
}
#endif /* APP_LOOKUP_METHOD */
static __rte_always_inline void
l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid)
{
struct rte_ether_hdr *eth_hdr;
struct rte_ipv4_hdr *ipv4_hdr;
uint16_t dst_port;
eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
/* Handle IPv4 headers.*/
ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
sizeof(struct rte_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,
RTE_PER_LCORE(lcore_conf)->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->dst_addr = dest_eth_addr[dst_port];
/* src addr */
rte_ether_addr_copy(&ports_eth_addr[dst_port],
&eth_hdr->src_addr);
send_single_packet(m, dst_port);
} else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
/* Handle IPv6 headers.*/
struct rte_ipv6_hdr *ipv6_hdr;
ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
sizeof(struct rte_ether_hdr));
dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
RTE_PER_LCORE(lcore_conf)->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->dst_addr = dest_eth_addr[dst_port];
/* src addr */
rte_ether_addr_copy(&ports_eth_addr[dst_port],
&eth_hdr->src_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 rte_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 __rte_always_inline void
rfc1812_process(struct rte_ipv4_hdr *ipv4_hdr, uint16_t *dp, uint32_t ptype)
{
uint8_t ihl;
if (RTE_ETH_IS_IPV4_HDR(ptype)) {
ihl = ipv4_hdr->version_ihl - IPV4_MIN_VER_IHL;
ipv4_hdr->time_to_live--;
ipv4_hdr->hdr_checksum++;
if (ihl > IPV4_MAX_VER_IHL_DIFF ||
((uint8_t)ipv4_hdr->total_length == 0 &&
ipv4_hdr->total_length < IPV4_MIN_LEN_BE)) {
dp[0] = BAD_PORT;
}
}
}
#else
#define rfc1812_process(mb, dp, ptype) do { } while (0)
#endif /* DO_RFC_1812_CHECKS */
#endif /* APP_LOOKUP_LPM && ENABLE_MULTI_BUFFER_OPTIMIZE */
#if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
(ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
static __rte_always_inline uint16_t
get_dst_port(struct rte_mbuf *pkt, uint32_t dst_ipv4, uint16_t portid)
{
uint32_t next_hop;
struct rte_ipv6_hdr *ipv6_hdr;
struct rte_ether_hdr *eth_hdr;
if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
return (uint16_t) ((rte_lpm_lookup(
RTE_PER_LCORE(lcore_conf)->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 rte_ether_hdr *);
ipv6_hdr = (struct rte_ipv6_hdr *)(eth_hdr + 1);
return (uint16_t) ((rte_lpm6_lookup(
RTE_PER_LCORE(lcore_conf)->ipv6_lookup_struct,
ipv6_hdr->dst_addr, &next_hop) == 0) ?
next_hop : portid);
}
return portid;
}
static inline void
process_packet(struct rte_mbuf *pkt, uint16_t *dst_port, uint16_t portid)
{
struct rte_ether_hdr *eth_hdr;
struct rte_ipv4_hdr *ipv4_hdr;
uint32_t dst_ipv4;
uint16_t dp;
__m128i te, ve;
eth_hdr = rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
ipv4_hdr = (struct rte_ipv4_hdr *)(eth_hdr + 1);
dst_ipv4 = ipv4_hdr->dst_addr;
dst_ipv4 = rte_be_to_cpu_32(dst_ipv4);
dp = get_dst_port(pkt, dst_ipv4, portid);
te = _mm_load_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_store_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 rte_ipv4_hdr *ipv4_hdr;
struct rte_ether_hdr *eth_hdr;
uint32_t x0, x1, x2, x3;
eth_hdr = rte_pktmbuf_mtod(pkt[0], struct rte_ether_hdr *);
ipv4_hdr = (struct rte_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 rte_ether_hdr *);
ipv4_hdr = (struct rte_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 rte_ether_hdr *);
ipv4_hdr = (struct rte_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 rte_ether_hdr *);
ipv4_hdr = (struct rte_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(__m128i dip,
uint32_t ipv4_flag,
uint16_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(RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct, dip,
dst.u32, portid);
/* get rid of unused upper 16 bit for each dport. */
dst.x = _mm_packs_epi32(dst.x, dst.x);
*(uint64_t *)dprt = dst.u64[0];
} else {
dst.x = dip;
dprt[0] = get_dst_port(pkt[0], dst.u32[0], portid);
dprt[1] = get_dst_port(pkt[1], dst.u32[1], portid);
dprt[2] = get_dst_port(pkt[2], dst.u32[2], portid);
dprt[3] = get_dst_port(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_load_si128(p[0]);
ve[1] = val_eth[dst_port[1]];
te[1] = _mm_load_si128(p[1]);
ve[2] = val_eth[dst_port[2]];
te[2] = _mm_load_si128(p[2]);
ve[3] = val_eth[dst_port[3]];
te[3] = _mm_load_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_store_si128(p[0], te[0]);
_mm_store_si128(p[1], te[1]);
_mm_store_si128(p[2], te[2]);
_mm_store_si128(p[3], te[3]);
rfc1812_process((struct rte_ipv4_hdr *)
((struct rte_ether_hdr *)p[0] + 1),
&dst_port[0], pkt[0]->packet_type);
rfc1812_process((struct rte_ipv4_hdr *)
((struct rte_ether_hdr *)p[1] + 1),
&dst_port[1], pkt[1]->packet_type);
rfc1812_process((struct rte_ipv4_hdr *)
((struct rte_ether_hdr *)p[2] + 1),
&dst_port[2], pkt[2]->packet_type);
rfc1812_process((struct rte_ipv4_hdr *)
((struct rte_ether_hdr *)p[3] + 1),
&dst_port[3], pkt[3]->packet_type);
}
/*
* We group consecutive packets with the same destination 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 destination ports:
* dst_port[] = {a, b, c, d,, e, ... }
* dp1 should contain: <a, b, c, d>, dp2: <b, c, d, e>.
* We doing 4 comparisons 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 element. */
uint16_t lpv; /* add value to the last updated element. */
} gptbl[GRPSZ] = {
{
/* 0: a != b, b != c, c != d, d != e */
.pnum = UINT64_C(0x0001000100010001),
.idx = 4,
.lpv = 0,
},
{
/* 1: a == b, b != c, c != d, d != e */
.pnum = UINT64_C(0x0001000100010002),
.idx = 4,
.lpv = 1,
},
{
/* 2: a != b, b == c, c != d, d != e */
.pnum = UINT64_C(0x0001000100020001),
.idx = 4,
.lpv = 0,
},
{
/* 3: a == b, b == c, c != d, d != e */
.pnum = UINT64_C(0x0001000100020003),
.idx = 4,
.lpv = 2,
},
{
/* 4: a != b, b != c, c == d, d != e */
.pnum = UINT64_C(0x0001000200010001),
.idx = 4,
.lpv = 0,
},
{
/* 5: a == b, b != c, c == d, d != e */
.pnum = UINT64_C(0x0001000200010002),
.idx = 4,
.lpv = 1,
},
{
/* 6: a != b, b == c, c == d, d != e */
.pnum = UINT64_C(0x0001000200030001),
.idx = 4,
.lpv = 0,
},
{
/* 7: a == b, b == c, c == d, d != e */
.pnum = UINT64_C(0x0001000200030004),
.idx = 4,
.lpv = 3,
},
{
/* 8: a != b, b != c, c != d, d == e */
.pnum = UINT64_C(0x0002000100010001),
.idx = 3,
.lpv = 0,
},
{
/* 9: a == b, b != c, c != d, d == e */
.pnum = UINT64_C(0x0002000100010002),
.idx = 3,
.lpv = 1,
},
{
/* 0xa: a != b, b == c, c != d, d == e */
.pnum = UINT64_C(0x0002000100020001),
.idx = 3,
.lpv = 0,
},
{
/* 0xb: a == b, b == c, c != d, d == e */
.pnum = UINT64_C(0x0002000100020003),
.idx = 3,
.lpv = 2,
},
{
/* 0xc: a != b, b != c, c == d, d == e */
.pnum = UINT64_C(0x0002000300010001),
.idx = 2,
.lpv = 0,
},
{
/* 0xd: a == b, b != c, c == d, d == e */
.pnum = UINT64_C(0x0002000300010002),
.idx = 2,
.lpv = 1,
},
{
/* 0xe: a != b, b == c, c == d, d == e */
.pnum = UINT64_C(0x0002000300040001),
.idx = 1,
.lpv = 0,
},
{
/* 0xf: a == b, b == c, c == d, d == e */
.pnum = UINT64_C(0x0002000300040005),
.idx = 0,
.lpv = 4,
},
};
union {
uint16_t u16[FWDSTEP + 1];
uint64_t u64;
} *pnum = (void *)pn;
int32_t v;
dp1 = _mm_cmpeq_epi16(dp1, dp2);
dp1 = _mm_unpacklo_epi16(dp1, dp1);
v = _mm_movemask_ps((__m128)dp1);
/* update last port counter. */
lp[0] += gptbl[v].lpv;
/* if dest port value has changed. */
if (v != GRPMSK) {
pnum->u64 = gptbl[v].pnum;
pnum->u16[FWDSTEP] = 1;
lp = pnum->u16 + gptbl[v].idx;
}
return lp;
}
#endif /* APP_LOOKUP_METHOD */
static void
process_burst(struct rte_mbuf *pkts_burst[MAX_PKT_BURST], int nb_rx,
uint16_t portid)
{
int j;
#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
#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);
} else if (pkt_type &
RTE_PTYPE_L3_IPV6) {
simple_ipv6_fwd_8pkts(&pkts_burst[j], portid);
} else {
l3fwd_simple_forward(pkts_burst[j], portid);
l3fwd_simple_forward(pkts_burst[j+1], portid);
l3fwd_simple_forward(pkts_burst[j+2], portid);
l3fwd_simple_forward(pkts_burst[j+3], portid);
l3fwd_simple_forward(pkts_burst[j+4], portid);
l3fwd_simple_forward(pkts_burst[j+5], portid);
l3fwd_simple_forward(pkts_burst[j+6], portid);
l3fwd_simple_forward(pkts_burst[j+7], portid);
}
}
for (; j < nb_rx ; j++)
l3fwd_simple_forward(pkts_burst[j], portid);
}
#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(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(pkts_burst[j], dst_port + j, portid);
GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
j++;
/* fall-through */
case 2:
process_packet(pkts_burst[j], dst_port + j, portid);
GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
j++;
/* fall-through */
case 1:
process_packet(pkts_burst[j], dst_port + j, portid);
GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
j++;
}
/*
* Send packets out, through destination port.
* Consecutive packets with the same destination port
* are already grouped together.
* If destination port for the packet equals BAD_PORT,
* then free the packet without sending it out.
*/
for (j = 0; j < nb_rx; j += k) {
int32_t m;
uint16_t pn;
pn = dst_port[j];
k = pnum[j];
if (likely(pn != BAD_PORT))
send_packetsx4(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);
}
/* Forward remaining prefetched packets */
for (; j < nb_rx; j++)
l3fwd_simple_forward(pkts_burst[j], portid);
#endif /* ENABLE_MULTI_BUFFER_OPTIMIZE */
}
#if (APP_CPU_LOAD > 0)
/*
* CPU-load stats collector
*/
static int __rte_noreturn
cpu_load_collector(__rte_unused void *arg) {
unsigned i, j, k;
uint64_t prev_tsc, diff_tsc, cur_tsc;
uint64_t total[MAX_CPU] = { 0 };
unsigned min_cpu = MAX_CPU;
unsigned max_cpu = 0;
unsigned cpu_id;
int busy_total = 0;
int busy_flag = 0;
unsigned int n_thread_per_cpu[MAX_CPU] = { 0 };
struct thread_conf *thread_per_cpu[MAX_CPU][MAX_THREAD];
struct thread_conf *thread_conf;
const uint64_t interval_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
US_PER_S * CPU_LOAD_TIMEOUT_US;
prev_tsc = 0;
/*
* Wait for all threads
*/
printf("Waiting for %d rx threads and %d tx threads\n", n_rx_thread,
n_tx_thread);
rte_wait_until_equal_16(&rx_counter, n_rx_thread, __ATOMIC_RELAXED);
rte_wait_until_equal_16(&tx_counter, n_tx_thread, __ATOMIC_RELAXED);
for (i = 0; i < n_rx_thread; i++) {
thread_conf = &rx_thread[i].conf;
cpu_id = thread_conf->cpu_id;
thread_per_cpu[cpu_id][n_thread_per_cpu[cpu_id]++] = thread_conf;
if (cpu_id > max_cpu)
max_cpu = cpu_id;
if (cpu_id < min_cpu)
min_cpu = cpu_id;
}
for (i = 0; i < n_tx_thread; i++) {
thread_conf = &tx_thread[i].conf;
cpu_id = thread_conf->cpu_id;
thread_per_cpu[cpu_id][n_thread_per_cpu[cpu_id]++] = thread_conf;
if (thread_conf->cpu_id > max_cpu)
max_cpu = thread_conf->cpu_id;
if (thread_conf->cpu_id < min_cpu)
min_cpu = thread_conf->cpu_id;
}
while (1) {
cpu_load.counter++;
for (i = min_cpu; i <= max_cpu; i++) {
for (j = 0; j < MAX_CPU_COUNTER; j++) {
for (k = 0; k < n_thread_per_cpu[i]; k++)
if (thread_per_cpu[i][k]->busy[j]) {
busy_flag = 1;
break;
}
if (busy_flag) {
cpu_load.hits[j][i]++;
busy_total = 1;
busy_flag = 0;
}
}
if (busy_total) {
total[i]++;
busy_total = 0;
}
}
cur_tsc = rte_rdtsc();
diff_tsc = cur_tsc - prev_tsc;
if (unlikely(diff_tsc > interval_tsc)) {
printf("\033c");
printf("Cpu usage for %d rx threads and %d tx threads:\n\n",
n_rx_thread, n_tx_thread);
printf("cpu# proc%% poll%% overhead%%\n\n");
for (i = min_cpu; i <= max_cpu; i++) {
printf("CPU %d:", i);
for (j = 0; j < MAX_CPU_COUNTER; j++) {
printf("%7" PRIu64 "",
cpu_load.hits[j][i] * 100 / cpu_load.counter);
cpu_load.hits[j][i] = 0;
}
printf("%7" PRIu64 "\n",
100 - total[i] * 100 / cpu_load.counter);
total[i] = 0;
}
cpu_load.counter = 0;
prev_tsc = cur_tsc;
}
}
}
#endif /* APP_CPU_LOAD */
/*
* Null processing lthread loop
*
* This loop is used to start empty scheduler on lcore.
*/
static void *
lthread_null(__rte_unused void *args)
{
int lcore_id = rte_lcore_id();
RTE_LOG(INFO, L3FWD, "Starting scheduler on lcore %d.\n", lcore_id);
lthread_exit(NULL);
return NULL;
}
/* main processing loop */
static void *
lthread_tx_per_ring(void *dummy)
{
int nb_rx;
uint16_t portid;
struct rte_ring *ring;
struct thread_tx_conf *tx_conf;
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
struct lthread_cond *ready;
tx_conf = (struct thread_tx_conf *)dummy;
ring = tx_conf->ring;
ready = *tx_conf->ready;
lthread_set_data((void *)tx_conf);
/*
* Move this lthread to lcore
*/
lthread_set_affinity(tx_conf->conf.lcore_id);
RTE_LOG(INFO, L3FWD, "entering main tx loop on lcore %u\n", rte_lcore_id());
nb_rx = 0;
__atomic_fetch_add(&tx_counter, 1, __ATOMIC_RELAXED);
while (1) {
/*
* Read packet from ring
*/
SET_CPU_BUSY(tx_conf, CPU_POLL);
nb_rx = rte_ring_sc_dequeue_burst(ring, (void **)pkts_burst,
MAX_PKT_BURST, NULL);
SET_CPU_IDLE(tx_conf, CPU_POLL);
if (nb_rx > 0) {
SET_CPU_BUSY(tx_conf, CPU_PROCESS);
portid = pkts_burst[0]->port;
process_burst(pkts_burst, nb_rx, portid);
SET_CPU_IDLE(tx_conf, CPU_PROCESS);
lthread_yield();
} else
lthread_cond_wait(ready, 0);
}
return NULL;
}
/*
* Main tx-lthreads spawner lthread.
*
* This lthread is used to spawn one new lthread per ring from producers.
*
*/
static void *
lthread_tx(void *args)
{
struct lthread *lt;
unsigned lcore_id;
uint16_t portid;
struct thread_tx_conf *tx_conf;
tx_conf = (struct thread_tx_conf *)args;
lthread_set_data((void *)tx_conf);
/*
* Move this lthread to the selected lcore
*/
lthread_set_affinity(tx_conf->conf.lcore_id);
/*
* Spawn tx readers (one per input ring)
*/
lthread_create(&lt, tx_conf->conf.lcore_id, lthread_tx_per_ring,
(void *)tx_conf);
lcore_id = rte_lcore_id();
RTE_LOG(INFO, L3FWD, "Entering Tx main loop on lcore %u\n", lcore_id);
tx_conf->conf.cpu_id = sched_getcpu();
while (1) {
lthread_sleep(BURST_TX_DRAIN_US * 1000);
/*
* TX burst queue drain
*/
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
if (tx_conf->tx_mbufs[portid].len == 0)
continue;
SET_CPU_BUSY(tx_conf, CPU_PROCESS);
send_burst(tx_conf, tx_conf->tx_mbufs[portid].len, portid);
SET_CPU_IDLE(tx_conf, CPU_PROCESS);
tx_conf->tx_mbufs[portid].len = 0;
}
}
return NULL;
}
static void *
lthread_rx(void *dummy)
{
int ret;
uint16_t nb_rx;
int i;
uint16_t portid;
uint8_t queueid;
int worker_id;
int len[RTE_MAX_LCORE] = { 0 };
int old_len, new_len;
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
struct thread_rx_conf *rx_conf;
rx_conf = (struct thread_rx_conf *)dummy;
lthread_set_data((void *)rx_conf);
/*
* Move this lthread to lcore
*/
lthread_set_affinity(rx_conf->conf.lcore_id);
if (rx_conf->n_rx_queue == 0) {
RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", rte_lcore_id());
return NULL;
}
RTE_LOG(INFO, L3FWD, "Entering main Rx loop on lcore %u\n", rte_lcore_id());
for (i = 0; i < rx_conf->n_rx_queue; i++) {
portid = rx_conf->rx_queue_list[i].port_id;
queueid = rx_conf->rx_queue_list[i].queue_id;
RTE_LOG(INFO, L3FWD,
" -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
rte_lcore_id(), portid, queueid);
}
/*
* Init all condition variables (one per rx thread)
*/
for (i = 0; i < rx_conf->n_rx_queue; i++)
lthread_cond_init(NULL, &rx_conf->ready[i], NULL);
worker_id = 0;
rx_conf->conf.cpu_id = sched_getcpu();
__atomic_fetch_add(&rx_counter, 1, __ATOMIC_RELAXED);
while (1) {
/*
* Read packet from RX queues
*/
for (i = 0; i < rx_conf->n_rx_queue; ++i) {
portid = rx_conf->rx_queue_list[i].port_id;
queueid = rx_conf->rx_queue_list[i].queue_id;
SET_CPU_BUSY(rx_conf, CPU_POLL);
nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
MAX_PKT_BURST);
SET_CPU_IDLE(rx_conf, CPU_POLL);
if (nb_rx != 0) {
worker_id = (worker_id + 1) % rx_conf->n_ring;
old_len = len[worker_id];
SET_CPU_BUSY(rx_conf, CPU_PROCESS);
ret = rte_ring_sp_enqueue_burst(
rx_conf->ring[worker_id],
(void **) pkts_burst,
nb_rx, NULL);
new_len = old_len + ret;
if (new_len >= BURST_SIZE) {
lthread_cond_signal(rx_conf->ready[worker_id]);
new_len = 0;
}
len[worker_id] = new_len;
if (unlikely(ret < nb_rx)) {
uint32_t k;
for (k = ret; k < nb_rx; k++) {
struct rte_mbuf *m = pkts_burst[k];
rte_pktmbuf_free(m);
}
}
SET_CPU_IDLE(rx_conf, CPU_PROCESS);
}
lthread_yield();
}
}
return NULL;
}
/*
* Start scheduler with initial lthread on lcore
*
* This lthread loop spawns all rx and tx lthreads on main lcore
*/
static void *
lthread_spawner(__rte_unused void *arg)
{
struct lthread *lt[MAX_THREAD];
int i;
int n_thread = 0;
printf("Entering lthread_spawner\n");
/*
* Create producers (rx threads) on default lcore
*/
for (i = 0; i < n_rx_thread; i++) {
rx_thread[i].conf.thread_id = i;
lthread_create(&lt[n_thread], -1, lthread_rx,
(void *)&rx_thread[i]);
n_thread++;
}
/*
* Wait for all producers. Until some producers can be started on the same
* scheduler as this lthread, yielding is required to let them to run and
* prevent deadlock here.
*/
while (__atomic_load_n(&rx_counter, __ATOMIC_RELAXED) < n_rx_thread)
lthread_sleep(100000);
/*
* Create consumers (tx threads) on default lcore_id
*/
for (i = 0; i < n_tx_thread; i++) {
tx_thread[i].conf.thread_id = i;
lthread_create(&lt[n_thread], -1, lthread_tx,
(void *)&tx_thread[i]);
n_thread++;
}
/*
* Wait for all threads finished
*/
for (i = 0; i < n_thread; i++)
lthread_join(lt[i], NULL);
return NULL;
}
/*
* Start main scheduler with initial lthread spawning rx and tx lthreads
* (main_lthread_main).
*/
static int
lthread_main_spawner(__rte_unused void *arg) {
struct lthread *lt;
int lcore_id = rte_lcore_id();
RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
lthread_create(&lt, -1, lthread_spawner, NULL);
lthread_run();
return 0;
}
/*
* Start scheduler on lcore.
*/
static int
sched_spawner(__rte_unused void *arg) {
struct lthread *lt;
int lcore_id = rte_lcore_id();
#if (APP_CPU_LOAD)
if (lcore_id == cpu_load_lcore_id) {
cpu_load_collector(arg);
return 0;
}
#endif /* APP_CPU_LOAD */
RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
lthread_create(&lt, -1, lthread_null, NULL);
lthread_run();
return 0;
}
/* main processing loop */
static int __rte_noreturn
pthread_tx(void *dummy)
{
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
uint64_t prev_tsc, diff_tsc, cur_tsc;
int nb_rx;
uint16_t portid;
struct thread_tx_conf *tx_conf;
const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
US_PER_S * BURST_TX_DRAIN_US;
prev_tsc = 0;
tx_conf = (struct thread_tx_conf *)dummy;
RTE_LOG(INFO, L3FWD, "Entering main Tx loop on lcore %u\n", rte_lcore_id());
tx_conf->conf.cpu_id = sched_getcpu();
__atomic_fetch_add(&tx_counter, 1, __ATOMIC_RELAXED);
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
*/
SET_CPU_BUSY(tx_conf, CPU_PROCESS);
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
if (tx_conf->tx_mbufs[portid].len == 0)
continue;
send_burst(tx_conf, tx_conf->tx_mbufs[portid].len, portid);
tx_conf->tx_mbufs[portid].len = 0;
}
SET_CPU_IDLE(tx_conf, CPU_PROCESS);
prev_tsc = cur_tsc;
}
/*
* Read packet from ring
*/
SET_CPU_BUSY(tx_conf, CPU_POLL);
nb_rx = rte_ring_sc_dequeue_burst(tx_conf->ring,
(void **)pkts_burst, MAX_PKT_BURST, NULL);
SET_CPU_IDLE(tx_conf, CPU_POLL);
if (unlikely(nb_rx == 0)) {
sched_yield();
continue;
}
SET_CPU_BUSY(tx_conf, CPU_PROCESS);
portid = pkts_burst[0]->port;
process_burst(pkts_burst, nb_rx, portid);
SET_CPU_IDLE(tx_conf, CPU_PROCESS);
}
}
static int
pthread_rx(void *dummy)
{
int i;
int worker_id;
uint32_t n;
uint32_t nb_rx;
unsigned lcore_id;
uint8_t queueid;
uint16_t portid;
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
struct thread_rx_conf *rx_conf;
lcore_id = rte_lcore_id();
rx_conf = (struct thread_rx_conf *)dummy;
if (rx_conf->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 rx loop on lcore %u\n", lcore_id);
for (i = 0; i < rx_conf->n_rx_queue; i++) {
portid = rx_conf->rx_queue_list[i].port_id;
queueid = rx_conf->rx_queue_list[i].queue_id;
RTE_LOG(INFO, L3FWD,
" -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
lcore_id, portid, queueid);
}
worker_id = 0;
rx_conf->conf.cpu_id = sched_getcpu();
__atomic_fetch_add(&rx_counter, 1, __ATOMIC_RELAXED);
while (1) {
/*
* Read packet from RX queues
*/
for (i = 0; i < rx_conf->n_rx_queue; ++i) {
portid = rx_conf->rx_queue_list[i].port_id;
queueid = rx_conf->rx_queue_list[i].queue_id;
SET_CPU_BUSY(rx_conf, CPU_POLL);
nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
MAX_PKT_BURST);
SET_CPU_IDLE(rx_conf, CPU_POLL);
if (nb_rx == 0) {
sched_yield();
continue;
}
SET_CPU_BUSY(rx_conf, CPU_PROCESS);
worker_id = (worker_id + 1) % rx_conf->n_ring;
n = rte_ring_sp_enqueue_burst(rx_conf->ring[worker_id],
(void **)pkts_burst, nb_rx, NULL);
if (unlikely(n != nb_rx)) {
uint32_t k;
for (k = n; k < nb_rx; k++) {
struct rte_mbuf *m = pkts_burst[k];
rte_pktmbuf_free(m);
}
}
SET_CPU_IDLE(rx_conf, CPU_PROCESS);
}
}
}
/*
* P-Thread spawner.
*/
static int
pthread_run(__rte_unused void *arg) {
int lcore_id = rte_lcore_id();
int i;
for (i = 0; i < n_rx_thread; i++)
if (rx_thread[i].conf.lcore_id == lcore_id) {
printf("Start rx thread on %d...\n", lcore_id);
RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
RTE_PER_LCORE(lcore_conf)->data = (void *)&rx_thread[i];
pthread_rx((void *)&rx_thread[i]);
return 0;
}
for (i = 0; i < n_tx_thread; i++)
if (tx_thread[i].conf.lcore_id == lcore_id) {
printf("Start tx thread on %d...\n", lcore_id);
RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
RTE_PER_LCORE(lcore_conf)->data = (void *)&tx_thread[i];
pthread_tx((void *)&tx_thread[i]);
return 0;
}
#if (APP_CPU_LOAD)
if (lcore_id == cpu_load_lcore_id)
cpu_load_collector(arg);
#endif /* APP_CPU_LOAD */
return 0;
}
static int
check_lcore_params(void)
{
uint8_t queue, lcore;
uint16_t i;
int socketid;
for (i = 0; i < nb_rx_thread_params; ++i) {
queue = rx_thread_params[i].queue_id;
if (queue >= MAX_RX_QUEUE_PER_PORT) {
printf("invalid queue number: %hhu\n", queue);
return -1;
}
lcore = rx_thread_params[i].lcore_id;
if (!rte_lcore_is_enabled(lcore)) {
printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
return -1;
}
socketid = rte_lcore_to_socket_id(lcore);
if ((socketid != 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(void)
{
unsigned portid;
uint16_t i;
for (i = 0; i < nb_rx_thread_params; ++i) {
portid = rx_thread_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 (!rte_eth_dev_is_valid_port(portid)) {
printf("port %u is not present on the board\n", portid);
return -1;
}
}
return 0;
}
static uint8_t
get_port_n_rx_queues(const uint16_t port)
{
int queue = -1;
uint16_t i;
for (i = 0; i < nb_rx_thread_params; ++i)
if (rx_thread_params[i].port_id == port &&
rx_thread_params[i].queue_id > queue)
queue = rx_thread_params[i].queue_id;
return (uint8_t)(++queue);
}
static int
init_rx_rings(void)
{
unsigned socket_io;
struct thread_rx_conf *rx_conf;
struct thread_tx_conf *tx_conf;
unsigned rx_thread_id, tx_thread_id;
char name[256];
struct rte_ring *ring = NULL;
for (tx_thread_id = 0; tx_thread_id < n_tx_thread; tx_thread_id++) {
tx_conf = &tx_thread[tx_thread_id];
printf("Connecting tx-thread %d with rx-thread %d\n", tx_thread_id,
tx_conf->conf.thread_id);
rx_thread_id = tx_conf->conf.thread_id;
if (rx_thread_id > n_tx_thread) {
printf("connection from tx-thread %u to rx-thread %u fails "
"(rx-thread not defined)\n", tx_thread_id, rx_thread_id);
return -1;
}
rx_conf = &rx_thread[rx_thread_id];
socket_io = rte_lcore_to_socket_id(rx_conf->conf.lcore_id);
snprintf(name, sizeof(name), "app_ring_s%u_rx%u_tx%u",
socket_io, rx_thread_id, tx_thread_id);
ring = rte_ring_create(name, 1024 * 4, socket_io,
RING_F_SP_ENQ | RING_F_SC_DEQ);
if (ring == NULL) {
rte_panic("Cannot create ring to connect rx-thread %u "
"with tx-thread %u\n", rx_thread_id, tx_thread_id);
}
rx_conf->ring[rx_conf->n_ring] = ring;
tx_conf->ring = ring;
tx_conf->ready = &rx_conf->ready[rx_conf->n_ring];
rx_conf->n_ring++;
}
return 0;
}
static int
init_rx_queues(void)
{
uint16_t i, nb_rx_queue;
uint8_t thread;
n_rx_thread = 0;
for (i = 0; i < nb_rx_thread_params; ++i) {
thread = rx_thread_params[i].thread_id;
nb_rx_queue = rx_thread[thread].n_rx_queue;
if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
printf("error: too many queues (%u) for thread: %u\n",
(unsigned)nb_rx_queue + 1, (unsigned)thread);
return -1;
}
rx_thread[thread].conf.thread_id = thread;
rx_thread[thread].conf.lcore_id = rx_thread_params[i].lcore_id;
rx_thread[thread].rx_queue_list[nb_rx_queue].port_id =
rx_thread_params[i].port_id;
rx_thread[thread].rx_queue_list[nb_rx_queue].queue_id =
rx_thread_params[i].queue_id;
rx_thread[thread].n_rx_queue++;
if (thread >= n_rx_thread)
n_rx_thread = thread + 1;
}
return 0;
}
static int
init_tx_threads(void)
{
int i;
n_tx_thread = 0;
for (i = 0; i < nb_tx_thread_params; ++i) {
tx_thread[n_tx_thread].conf.thread_id = tx_thread_params[i].thread_id;
tx_thread[n_tx_thread].conf.lcore_id = tx_thread_params[i].lcore_id;
n_tx_thread++;
}
return 0;
}
/* display usage */
static void
print_usage(const char *prgname)
{
printf("%s [EAL options] -- -p PORTMASK -P"
" [--rx (port,queue,lcore,thread)[,(port,queue,lcore,thread]]"
" [--tx (lcore,thread)[,(lcore,thread]]"
" [--max-pkt-len PKTLEN]"
" [--parse-ptype]\n\n"
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
" -P : enable promiscuous mode\n"
" --rx (port,queue,lcore,thread): rx queues configuration\n"
" --tx (lcore,thread): tx threads configuration\n"
" --stat-lcore LCORE: use lcore for stat collector\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"
" --max-pkt-len PKTLEN: maximum packet length in decimal (64-9600)\n"
" --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n"
" --no-lthreads: turn off lthread model\n"
" --parse-ptype: set to use software to analyze packet type\n\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 0;
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_rx_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,
FLD_THREAD,
_NUM_FLD
};
unsigned long int_fld[_NUM_FLD];
char *str_fld[_NUM_FLD];
int i;
unsigned size;
nb_rx_thread_params = 0;
while ((p = strchr(p0, '(')) != NULL) {
++p;
p0 = strchr(p, ')');
if (p0 == 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_rx_thread_params >= MAX_LCORE_PARAMS) {
printf("exceeded max number of rx params: %hu\n",
nb_rx_thread_params);
return -1;
}
rx_thread_params_array[nb_rx_thread_params].port_id =
int_fld[FLD_PORT];
rx_thread_params_array[nb_rx_thread_params].queue_id =
(uint8_t)int_fld[FLD_QUEUE];
rx_thread_params_array[nb_rx_thread_params].lcore_id =
(uint8_t)int_fld[FLD_LCORE];
rx_thread_params_array[nb_rx_thread_params].thread_id =
(uint8_t)int_fld[FLD_THREAD];
++nb_rx_thread_params;
}
rx_thread_params = rx_thread_params_array;
return 0;
}
static int
parse_tx_config(const char *q_arg)
{
char s[256];
const char *p, *p0 = q_arg;
char *end;
enum fieldnames {
FLD_LCORE = 0,
FLD_THREAD,
_NUM_FLD
};
unsigned long int_fld[_NUM_FLD];
char *str_fld[_NUM_FLD];
int i;
unsigned size;
nb_tx_thread_params = 0;
while ((p = strchr(p0, '(')) != NULL) {
++p;
p0 = strchr(p, ')');
if (p0 == 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_tx_thread_params >= MAX_LCORE_PARAMS) {
printf("exceeded max number of tx params: %hu\n",
nb_tx_thread_params);
return -1;
}
tx_thread_params_array[nb_tx_thread_params].lcore_id =
(uint8_t)int_fld[FLD_LCORE];
tx_thread_params_array[nb_tx_thread_params].thread_id =
(uint8_t)int_fld[FLD_THREAD];
++nb_tx_thread_params;
}
tx_thread_params = tx_thread_params_array;
return 0;
}
#if (APP_CPU_LOAD > 0)
static int
parse_stat_lcore(const char *stat_lcore)
{
char *end = NULL;
unsigned long lcore_id;
lcore_id = strtoul(stat_lcore, &end, 10);
if ((stat_lcore[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
return lcore_id;
}
#endif
static void
parse_eth_dest(const char *optarg)
{
uint16_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];
}
enum {
#define OPT_RX_CONFIG "rx"
OPT_RX_CONFIG_NUM = 256,
#define OPT_TX_CONFIG "tx"
OPT_TX_CONFIG_NUM,
#define OPT_STAT_LCORE "stat-lcore"
OPT_STAT_LCORE_NUM,
#define OPT_ETH_DEST "eth-dest"
OPT_ETH_DEST_NUM,
#define OPT_NO_NUMA "no-numa"
OPT_NO_NUMA_NUM,
#define OPT_IPV6 "ipv6"
OPT_IPV6_NUM,
#define OPT_MAX_PKT_LEN "max-pkt-len"
OPT_MAX_PKT_LEN_NUM,
#define OPT_HASH_ENTRY_NUM "hash-entry-num"
OPT_HASH_ENTRY_NUM_NUM,
#define OPT_NO_LTHREADS "no-lthreads"
OPT_NO_LTHREADS_NUM,
#define OPT_PARSE_PTYPE "parse-ptype"
OPT_PARSE_PTYPE_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[] = {
{OPT_RX_CONFIG, 1, NULL, OPT_RX_CONFIG_NUM },
{OPT_TX_CONFIG, 1, NULL, OPT_TX_CONFIG_NUM },
{OPT_STAT_LCORE, 1, NULL, OPT_STAT_LCORE_NUM },
{OPT_ETH_DEST, 1, NULL, OPT_ETH_DEST_NUM },
{OPT_NO_NUMA, 0, NULL, OPT_NO_NUMA_NUM },
{OPT_IPV6, 0, NULL, OPT_IPV6_NUM },
{OPT_MAX_PKT_LEN, 1, NULL, OPT_MAX_PKT_LEN_NUM },
{OPT_HASH_ENTRY_NUM, 1, NULL, OPT_HASH_ENTRY_NUM_NUM },
{OPT_NO_LTHREADS, 0, NULL, OPT_NO_LTHREADS_NUM },
{OPT_PARSE_PTYPE, 0, NULL, OPT_PARSE_PTYPE_NUM },
{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 OPT_RX_CONFIG_NUM:
ret = parse_rx_config(optarg);
if (ret) {
printf("invalid rx-config\n");
print_usage(prgname);
return -1;
}
break;
case OPT_TX_CONFIG_NUM:
ret = parse_tx_config(optarg);
if (ret) {
printf("invalid tx-config\n");
print_usage(prgname);
return -1;
}
break;
#if (APP_CPU_LOAD > 0)
case OPT_STAT_LCORE_NUM:
cpu_load_lcore_id = parse_stat_lcore(optarg);
break;
#endif
case OPT_ETH_DEST_NUM:
parse_eth_dest(optarg);
break;
case OPT_NO_NUMA_NUM:
printf("numa is disabled\n");
numa_on = 0;
break;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
case OPT_IPV6_NUM:
printf("ipv6 is specified\n");
ipv6 = 1;
break;
#endif
case OPT_NO_LTHREADS_NUM:
printf("l-threads model is disabled\n");
lthreads_on = 0;
break;
case OPT_PARSE_PTYPE_NUM:
printf("software packet type parsing enabled\n");
parse_ptype_on = 1;
break;
case OPT_MAX_PKT_LEN_NUM:
max_pkt_len = parse_max_pkt_len(optarg);
break;
#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
case OPT_HASH_ENTRY_NUM_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;
}
break;
#endif
default:
print_usage(prgname);
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 1; /* reset getopt lib */
return ret;
}
static void
print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
{
char buf[RTE_ETHER_ADDR_FMT_SIZE];
rte_ether_format_addr(buf, RTE_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;
}
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;
uint32_t array_len = RTE_DIM(ipv4_l3fwd_route_array);
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 = RTE_DIM(ipv6_l3fwd_route_array);
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 = RTE_IPV4(101, c, b, a);
break;
case 1:
entry = ipv4_l3fwd_route_array[1];
entry.key.ip_dst = RTE_IPV4(201, c, b, a);
break;
case 2:
entry = ipv4_l3fwd_route_array[2];
entry.key.ip_dst = RTE_IPV4(111, c, b, a);
break;
case 3:
entry = ipv4_l3fwd_route_array[3];
entry.key.ip_dst = RTE_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;
struct rte_lpm_config lpm_ipv4_config;
unsigned i;
int ret;
char s[64];
/* create the LPM table */
snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
lpm_ipv4_config.number_tbl8s = 256;
lpm_ipv4_config.flags = 0;
ipv4_l3fwd_lookup_struct[socketid] =
rte_lpm_create(s, socketid, &lpm_ipv4_config);
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(uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
uint16_t portid;
uint8_t count, all_ports_up, print_flag = 0;
struct rte_eth_link link;
int ret;
char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
printf("\nChecking link status");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
all_ports_up = 1;
RTE_ETH_FOREACH_DEV(portid) {
if ((port_mask & (1 << portid)) == 0)
continue;
memset(&link, 0, sizeof(link));
ret = rte_eth_link_get_nowait(portid, &link);
if (ret < 0) {
all_ports_up = 0;
if (print_flag == 1)
printf("Port %u link get failed: %s\n",
portid, rte_strerror(-ret));
continue;
}
/* print link status if flag set */
if (print_flag == 1) {
rte_eth_link_to_str(link_status_text,
sizeof(link_status_text), &link);
printf("Port %d %s\n", portid,
link_status_text);
continue;
}
/* clear all_ports_up flag if any link down */
if (link.link_status == RTE_ETH_LINK_DOWN) {
all_ports_up = 0;
break;
}
}
/* after finally printing all link status, get out */
if (print_flag == 1)
break;
if (all_ports_up == 0) {
printf(".");
fflush(stdout);
rte_delay_ms(CHECK_INTERVAL);
}
/* set the print_flag if all ports up or timeout */
if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
print_flag = 1;
printf("done\n");
}
}
}
static uint32_t
eth_dev_get_overhead_len(uint32_t max_rx_pktlen, uint16_t max_mtu)
{
uint32_t overhead_len;
if (max_mtu != UINT16_MAX && max_rx_pktlen > max_mtu)
overhead_len = max_rx_pktlen - max_mtu;
else
overhead_len = RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
return overhead_len;
}
static int
config_port_max_pkt_len(struct rte_eth_conf *conf,
struct rte_eth_dev_info *dev_info)
{
uint32_t overhead_len;
if (max_pkt_len == 0)
return 0;
if (max_pkt_len < RTE_ETHER_MIN_LEN || max_pkt_len > MAX_JUMBO_PKT_LEN)
return -1;
overhead_len = eth_dev_get_overhead_len(dev_info->max_rx_pktlen,
dev_info->max_mtu);
conf->rxmode.mtu = max_pkt_len - overhead_len;
if (conf->rxmode.mtu > RTE_ETHER_MTU)
conf->txmode.offloads |= RTE_ETH_TX_OFFLOAD_MULTI_SEGS;
return 0;
}
int
main(int argc, char **argv)
{
struct rte_eth_dev_info dev_info;
struct rte_eth_txconf *txconf;
int ret;
int i;
unsigned nb_ports;
uint16_t queueid, portid;
unsigned lcore_id;
uint32_t n_tx_queue, nb_lcores;
uint8_t 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;
ret = rte_timer_subsystem_init();
if (ret < 0)
rte_exit(EXIT_FAILURE, "Failed to initialize timer subsystem\n");
/* 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] = RTE_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");
printf("Initializing rx-queues...\n");
ret = init_rx_queues();
if (ret < 0)
rte_exit(EXIT_FAILURE, "init_rx_queues failed\n");
printf("Initializing tx-threads...\n");
ret = init_tx_threads();
if (ret < 0)
rte_exit(EXIT_FAILURE, "init_tx_threads failed\n");
printf("Initializing rings...\n");
ret = init_rx_rings();
if (ret < 0)
rte_exit(EXIT_FAILURE, "init_rx_rings failed\n");
nb_ports = rte_eth_dev_count_avail();
if (check_port_config() < 0)
rte_exit(EXIT_FAILURE, "check_port_config failed\n");
nb_lcores = rte_lcore_count();
/* initialize all ports */
RTE_ETH_FOREACH_DEV(portid) {
struct rte_eth_conf local_port_conf = port_conf;
/* 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_info_get(portid, &dev_info);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"Error during getting device (port %u) info: %s\n",
portid, strerror(-ret));
ret = config_port_max_pkt_len(&local_port_conf, &dev_info);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"Invalid max packet length: %u (port %u)\n",
max_pkt_len, portid);
if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
local_port_conf.txmode.offloads |=
RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
dev_info.flow_type_rss_offloads;
if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
port_conf.rx_adv_conf.rss_conf.rss_hf) {
printf("Port %u modified RSS hash function based on hardware support,"
"requested:%#"PRIx64" configured:%#"PRIx64"\n",
portid,
port_conf.rx_adv_conf.rss_conf.rss_hf,
local_port_conf.rx_adv_conf.rss_conf.rss_hf);
}
ret = rte_eth_dev_configure(portid, nb_rx_queue,
(uint16_t)n_tx_queue, &local_port_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
ret, portid);
ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
&nb_txd);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%d\n",
ret, portid);
ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"rte_eth_macaddr_get: err=%d, port=%d\n",
ret, portid);
print_ethaddr(" Address:", &ports_eth_addr[portid]);
printf(", ");
print_ethaddr("Destination:",
(const struct rte_ether_addr *)&dest_eth_addr[portid]);
printf(", ");
/*
* prepare src MACs for each port.
*/
rte_ether_addr_copy(&ports_eth_addr[portid],
(struct rte_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);
txconf = &dev_info.default_txconf;
txconf->offloads = local_port_conf.txmode.offloads;
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);
tx_thread[lcore_id].tx_queue_id[portid] = queueid;
queueid++;
}
printf("\n");
}
for (i = 0; i < n_rx_thread; i++) {
lcore_id = rx_thread[i].conf.lcore_id;
if (rte_lcore_is_enabled(lcore_id) == 0) {
rte_exit(EXIT_FAILURE,
"Cannot start Rx thread on lcore %u: lcore disabled\n",
lcore_id
);
}
printf("\nInitializing rx queues for Rx thread %d on lcore %u ... ",
i, lcore_id);
fflush(stdout);
/* init RX queues */
for (queue = 0; queue < rx_thread[i].n_rx_queue; ++queue) {
struct rte_eth_rxconf rxq_conf;
portid = rx_thread[i].rx_queue_list[queue].port_id;
queueid = rx_thread[i].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_dev_info_get(portid, &dev_info);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"Error during getting device (port %u) info: %s\n",
portid, strerror(-ret));
rxq_conf = dev_info.default_rxconf;
rxq_conf.offloads = port_conf.rxmode.offloads;
ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
socketid,
&rxq_conf,
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 */
RTE_ETH_FOREACH_DEV(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) {
ret = rte_eth_promiscuous_enable(portid);
if (ret != 0)
rte_exit(EXIT_FAILURE,
"rte_eth_promiscuous_enable: err=%s, port=%u\n",
rte_strerror(-ret), portid);
}
}
for (i = 0; i < n_rx_thread; i++) {
lcore_id = rx_thread[i].conf.lcore_id;
if (rte_lcore_is_enabled(lcore_id) == 0)
continue;
/* check if hw packet type is supported */
for (queue = 0; queue < rx_thread[i].n_rx_queue; ++queue) {
portid = rx_thread[i].rx_queue_list[queue].port_id;
queueid = rx_thread[i].rx_queue_list[queue].queue_id;
if (parse_ptype_on) {
if (!rte_eth_add_rx_callback(portid, queueid,
cb_parse_ptype, NULL))
rte_exit(EXIT_FAILURE,
"Failed to add rx callback: "
"port=%d\n", portid);
} else if (!check_ptype(portid))
rte_exit(EXIT_FAILURE,
"Port %d cannot parse packet type.\n\n"
"Please add --parse-ptype to use sw "
"packet type analyzer.\n\n",
portid);
}
}
check_all_ports_link_status(enabled_port_mask);
if (lthreads_on) {
printf("Starting L-Threading Model\n");
#if (APP_CPU_LOAD > 0)
if (cpu_load_lcore_id > 0)
/* Use one lcore for cpu load collector */
nb_lcores--;
#endif
lthread_num_schedulers_set(nb_lcores);
rte_eal_mp_remote_launch(sched_spawner, NULL, SKIP_MAIN);
lthread_main_spawner(NULL);
} else {
printf("Starting P-Threading Model\n");
/* launch per-lcore init on every lcore */
rte_eal_mp_remote_launch(pthread_run, NULL, CALL_MAIN);
RTE_LCORE_FOREACH_WORKER(lcore_id) {
if (rte_eal_wait_lcore(lcore_id) < 0)
return -1;
}
}
/* clean up the EAL */
rte_eal_cleanup();
return 0;
}
Generated by   doxygen 1.8.13