--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sys/queue.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <rte_common.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_launch.h>
+#include <rte_atomic.h>
+#include <rte_cycles.h>
+#include <rte_prefetch.h>
+#include <rte_lcore.h>
+#include <rte_per_lcore.h>
+#include <rte_branch_prediction.h>
+#include <rte_interrupts.h>
+#include <rte_pci.h>
+#include <rte_random.h>
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_string_fns.h>
+#include <rte_timer.h>
+#include <rte_power.h>
+#include <rte_eal.h>
+#include <rte_spinlock.h>
+
+#define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
+
+#define MAX_PKT_BURST 32
+
+#define MIN_ZERO_POLL_COUNT 10
+
+/* around 100ms at 2 Ghz */
+#define TIMER_RESOLUTION_CYCLES 200000000ULL
+/* 100 ms interval */
+#define TIMER_NUMBER_PER_SECOND 10
+/* 100000 us */
+#define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND)
+#define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
+
+#define APP_LOOKUP_EXACT_MATCH 0
+#define APP_LOOKUP_LPM 1
+#define DO_RFC_1812_CHECKS
+
+#ifndef APP_LOOKUP_METHOD
+#define APP_LOOKUP_METHOD APP_LOOKUP_LPM
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+#include <rte_hash.h>
+#elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+#include <rte_lpm.h>
+#else
+#error "APP_LOOKUP_METHOD set to incorrect value"
+#endif
+
+#ifndef IPv6_BYTES
+#define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
+ "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
+#define IPv6_BYTES(addr) \
+ addr[0], addr[1], addr[2], addr[3], \
+ addr[4], addr[5], addr[6], addr[7], \
+ addr[8], addr[9], addr[10], addr[11],\
+ addr[12], addr[13],addr[14], addr[15]
+#endif
+
+#define MAX_JUMBO_PKT_LEN 9600
+
+#define IPV6_ADDR_LEN 16
+
+#define MEMPOOL_CACHE_SIZE 256
+
+/*
+ * This expression is used to calculate the number of mbufs needed depending on
+ * user input, taking into account memory for rx and tx hardware rings, cache
+ * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
+ * NB_MBUF never goes below a minimum value of 8192.
+ */
+
+#define NB_MBUF RTE_MAX ( \
+ (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \
+ nb_ports*nb_lcores*MAX_PKT_BURST + \
+ nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \
+ nb_lcores*MEMPOOL_CACHE_SIZE), \
+ (unsigned)8192)
+
+#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
+
+#define NB_SOCKETS 8
+
+/* Configure how many packets ahead to prefetch, when reading packets */
+#define PREFETCH_OFFSET 3
+
+/*
+ * Configurable number of RX/TX ring descriptors
+ */
+#define RTE_TEST_RX_DESC_DEFAULT 128
+#define RTE_TEST_TX_DESC_DEFAULT 512
+static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
+static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
+
+/* ethernet addresses of ports */
+static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
+
+/* ethernet addresses of ports */
+static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
+
+/* mask of enabled ports */
+static uint32_t enabled_port_mask = 0;
+/* Ports set in promiscuous mode off by default. */
+static int promiscuous_on = 0;
+/* NUMA is enabled by default. */
+static int numa_on = 1;
+
+enum freq_scale_hint_t
+{
+ FREQ_LOWER = -1,
+ FREQ_CURRENT = 0,
+ FREQ_HIGHER = 1,
+ FREQ_HIGHEST = 2
+};
+
+struct lcore_rx_queue {
+ uint8_t port_id;
+ uint8_t queue_id;
+ enum freq_scale_hint_t freq_up_hint;
+ uint32_t zero_rx_packet_count;
+ uint32_t idle_hint;
+} __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_RX_QUEUE_INTERRUPT_PER_PORT 16
+
+
+#define MAX_LCORE_PARAMS 1024
+struct lcore_params {
+ uint8_t port_id;
+ uint8_t queue_id;
+ uint8_t lcore_id;
+} __rte_cache_aligned;
+
+static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
+static struct lcore_params lcore_params_array_default[] = {
+ {0, 0, 2},
+ {0, 1, 2},
+ {0, 2, 2},
+ {1, 0, 2},
+ {1, 1, 2},
+ {1, 2, 2},
+ {2, 0, 2},
+ {3, 0, 3},
+ {3, 1, 3},
+};
+
+static struct lcore_params * lcore_params = lcore_params_array_default;
+static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) /
+ sizeof(lcore_params_array_default[0]);
+
+static struct rte_eth_conf port_conf = {
+ .rxmode = {
+ .mq_mode = ETH_MQ_RX_RSS,
+ .max_rx_pkt_len = ETHER_MAX_LEN,
+ .split_hdr_size = 0,
+ .header_split = 0, /**< Header Split disabled */
+ .hw_ip_checksum = 1, /**< IP checksum offload enabled */
+ .hw_vlan_filter = 0, /**< VLAN filtering disabled */
+ .jumbo_frame = 0, /**< Jumbo Frame Support disabled */
+ .hw_strip_crc = 0, /**< CRC stripped by hardware */
+ },
+ .rx_adv_conf = {
+ .rss_conf = {
+ .rss_key = NULL,
+ .rss_hf = ETH_RSS_UDP,
+ },
+ },
+ .txmode = {
+ .mq_mode = ETH_MQ_TX_NONE,
+ },
+ .intr_conf = {
+ .lsc = 1,
+ .rxq = 1,
+ },
+};
+
+static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
+
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+
+#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
+#include <rte_hash_crc.h>
+#define DEFAULT_HASH_FUNC rte_hash_crc
+#else
+#include <rte_jhash.h>
+#define DEFAULT_HASH_FUNC rte_jhash
+#endif
+
+struct ipv4_5tuple {
+ uint32_t ip_dst;
+ uint32_t ip_src;
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+struct ipv6_5tuple {
+ uint8_t ip_dst[IPV6_ADDR_LEN];
+ uint8_t ip_src[IPV6_ADDR_LEN];
+ uint16_t port_dst;
+ uint16_t port_src;
+ uint8_t proto;
+} __attribute__((__packed__));
+
+struct ipv4_l3fwd_route {
+ struct ipv4_5tuple key;
+ uint8_t if_out;
+};
+
+struct ipv6_l3fwd_route {
+ struct ipv6_5tuple key;
+ uint8_t if_out;
+};
+
+static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
+ {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
+ {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
+ {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
+ {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
+};
+
+static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
+ {
+ {
+ {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
+ {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
+ 1, 10, IPPROTO_UDP
+ }, 4
+ },
+};
+
+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];
+
+#define L3FWD_HASH_ENTRIES 1024
+
+#define IPV4_L3FWD_NUM_ROUTES \
+ (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
+
+#define IPV6_L3FWD_NUM_ROUTES \
+ (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0]))
+
+static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+struct ipv4_l3fwd_route {
+ uint32_t ip;
+ uint8_t depth;
+ uint8_t if_out;
+};
+
+static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
+ {IPv4(1,1,1,0), 24, 0},
+ {IPv4(2,1,1,0), 24, 1},
+ {IPv4(3,1,1,0), 24, 2},
+ {IPv4(4,1,1,0), 24, 3},
+ {IPv4(5,1,1,0), 24, 4},
+ {IPv4(6,1,1,0), 24, 5},
+ {IPv4(7,1,1,0), 24, 6},
+ {IPv4(8,1,1,0), 24, 7},
+};
+
+#define IPV4_L3FWD_NUM_ROUTES \
+ (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0]))
+
+#define IPV4_L3FWD_LPM_MAX_RULES 1024
+
+typedef struct rte_lpm lookup_struct_t;
+static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
+#endif
+
+struct lcore_conf {
+ uint16_t n_rx_queue;
+ struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
+ uint16_t n_tx_port;
+ uint16_t tx_port_id[RTE_MAX_ETHPORTS];
+ uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
+ struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
+ lookup_struct_t * ipv4_lookup_struct;
+ lookup_struct_t * ipv6_lookup_struct;
+} __rte_cache_aligned;
+
+struct lcore_stats {
+ /* total sleep time in ms since last frequency scaling down */
+ uint32_t sleep_time;
+ /* number of long sleep recently */
+ uint32_t nb_long_sleep;
+ /* freq. scaling up trend */
+ uint32_t trend;
+ /* total packet processed recently */
+ uint64_t nb_rx_processed;
+ /* total iterations looped recently */
+ uint64_t nb_iteration_looped;
+ uint32_t padding[9];
+} __rte_cache_aligned;
+
+static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
+static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
+static struct rte_timer power_timers[RTE_MAX_LCORE];
+
+static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
+static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
+ unsigned lcore_id, uint8_t port_id, uint16_t queue_id);
+
+/* exit signal handler */
+static void
+signal_exit_now(int sigtype)
+{
+ unsigned lcore_id;
+ int ret;
+
+ if (sigtype == SIGINT) {
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ /* init power management library */
+ ret = rte_power_exit(lcore_id);
+ if (ret)
+ rte_exit(EXIT_FAILURE, "Power management "
+ "library de-initialization failed on "
+ "core%u\n", lcore_id);
+ }
+ }
+
+ rte_exit(EXIT_SUCCESS, "User forced exit\n");
+}
+
+/* Freqency scale down timer callback */
+static void
+power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
+ __attribute__((unused)) void *arg)
+{
+ uint64_t hz;
+ float sleep_time_ratio;
+ unsigned lcore_id = rte_lcore_id();
+
+ /* accumulate total execution time in us when callback is invoked */
+ sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
+ (float)SCALING_PERIOD;
+ /**
+ * check whether need to scale down frequency a step if it sleep a lot.
+ */
+ if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
+ if (rte_power_freq_down)
+ rte_power_freq_down(lcore_id);
+ }
+ else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
+ stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
+ /**
+ * scale down a step if average packet per iteration less
+ * than expectation.
+ */
+ if (rte_power_freq_down)
+ rte_power_freq_down(lcore_id);
+ }
+
+ /**
+ * initialize another timer according to current frequency to ensure
+ * timer interval is relatively fixed.
+ */
+ hz = rte_get_timer_hz();
+ rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
+ SINGLE, lcore_id, power_timer_cb, NULL);
+
+ stats[lcore_id].nb_rx_processed = 0;
+ stats[lcore_id].nb_iteration_looped = 0;
+
+ stats[lcore_id].sleep_time = 0;
+}
+
+/* Enqueue a single packet, and send burst if queue is filled */
+static inline int
+send_single_packet(struct rte_mbuf *m, uint8_t port)
+{
+ uint32_t lcore_id;
+ struct lcore_conf *qconf;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_conf[lcore_id];
+
+ rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
+ qconf->tx_buffer[port], m);
+
+ return 0;
+}
+
+#ifdef DO_RFC_1812_CHECKS
+static inline int
+is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
+{
+ /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
+ /*
+ * 1. The packet length reported by the Link Layer must be large
+ * enough to hold the minimum length legal IP datagram (20 bytes).
+ */
+ if (link_len < sizeof(struct ipv4_hdr))
+ return -1;
+
+ /* 2. The IP checksum must be correct. */
+ /* this is checked in H/W */
+
+ /*
+ * 3. The IP version number must be 4. If the version number is not 4
+ * then the packet may be another version of IP, such as IPng or
+ * ST-II.
+ */
+ if (((pkt->version_ihl) >> 4) != 4)
+ return -3;
+ /*
+ * 4. The IP header length field must be large enough to hold the
+ * minimum length legal IP datagram (20 bytes = 5 words).
+ */
+ if ((pkt->version_ihl & 0xf) < 5)
+ return -4;
+
+ /*
+ * 5. The IP total length field must be large enough to hold the IP
+ * datagram header, whose length is specified in the IP header length
+ * field.
+ */
+ if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
+ return -5;
+
+ return 0;
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+static void
+print_ipv4_key(struct ipv4_5tuple key)
+{
+ printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
+ "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
+ key.port_dst, key.port_src, key.proto);
+}
+static void
+print_ipv6_key(struct ipv6_5tuple key)
+{
+ printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
+ "port dst = %d, port src = %d, proto = %d\n",
+ IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
+ key.port_dst, key.port_src, key.proto);
+}
+
+static inline uint8_t
+get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+ lookup_struct_t * ipv4_l3fwd_lookup_struct)
+{
+ struct ipv4_5tuple key;
+ struct tcp_hdr *tcp;
+ struct udp_hdr *udp;
+ int ret = 0;
+
+ key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
+ key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
+ key.proto = ipv4_hdr->next_proto_id;
+
+ switch (ipv4_hdr->next_proto_id) {
+ case IPPROTO_TCP:
+ tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr +
+ sizeof(struct ipv4_hdr));
+ key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
+ key.port_src = rte_be_to_cpu_16(tcp->src_port);
+ break;
+
+ case IPPROTO_UDP:
+ udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr +
+ sizeof(struct ipv4_hdr));
+ key.port_dst = rte_be_to_cpu_16(udp->dst_port);
+ key.port_src = rte_be_to_cpu_16(udp->src_port);
+ break;
+
+ default:
+ key.port_dst = 0;
+ key.port_src = 0;
+ break;
+ }
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]);
+}
+
+static inline uint8_t
+get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint8_t portid,
+ lookup_struct_t *ipv6_l3fwd_lookup_struct)
+{
+ struct ipv6_5tuple key;
+ struct tcp_hdr *tcp;
+ struct udp_hdr *udp;
+ int ret = 0;
+
+ memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
+ memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
+
+ key.proto = ipv6_hdr->proto;
+
+ switch (ipv6_hdr->proto) {
+ case IPPROTO_TCP:
+ tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr +
+ sizeof(struct ipv6_hdr));
+ key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
+ key.port_src = rte_be_to_cpu_16(tcp->src_port);
+ break;
+
+ case IPPROTO_UDP:
+ udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr +
+ sizeof(struct ipv6_hdr));
+ key.port_dst = rte_be_to_cpu_16(udp->dst_port);
+ key.port_src = rte_be_to_cpu_16(udp->src_port);
+ break;
+
+ default:
+ key.port_dst = 0;
+ key.port_src = 0;
+ break;
+ }
+
+ /* Find destination port */
+ ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
+ return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]);
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+static inline uint8_t
+get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid,
+ lookup_struct_t *ipv4_l3fwd_lookup_struct)
+{
+ uint32_t next_hop;
+
+ return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
+ rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
+ next_hop : portid);
+}
+#endif
+
+static inline void
+l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid,
+ struct lcore_conf *qconf)
+{
+ struct ether_hdr *eth_hdr;
+ struct ipv4_hdr *ipv4_hdr;
+ void *d_addr_bytes;
+ uint8_t dst_port;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
+
+ if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
+ /* Handle IPv4 headers.*/
+ ipv4_hdr =
+ rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
+ sizeof(struct ether_hdr));
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Check to make sure the packet is valid (RFC1812) */
+ if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
+ rte_pktmbuf_free(m);
+ return;
+ }
+#endif
+
+ dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* 02:00:00:00:00:xx */
+ d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
+ *((uint64_t *)d_addr_bytes) =
+ 0x000000000002 + ((uint64_t)dst_port << 40);
+
+#ifdef DO_RFC_1812_CHECKS
+ /* Update time to live and header checksum */
+ --(ipv4_hdr->time_to_live);
+ ++(ipv4_hdr->hdr_checksum);
+#endif
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
+
+ send_single_packet(m, dst_port);
+ } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
+ /* Handle IPv6 headers.*/
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+ struct ipv6_hdr *ipv6_hdr;
+
+ ipv6_hdr =
+ rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
+ sizeof(struct ether_hdr));
+
+ dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
+ (enabled_port_mask & 1 << dst_port) == 0)
+ dst_port = portid;
+
+ /* 02:00:00:00:00:xx */
+ d_addr_bytes = ð_hdr->d_addr.addr_bytes[0];
+ *((uint64_t *)d_addr_bytes) =
+ 0x000000000002 + ((uint64_t)dst_port << 40);
+
+ /* src addr */
+ ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
+
+ send_single_packet(m, dst_port);
+#else
+ /* We don't currently handle IPv6 packets in LPM mode. */
+ rte_pktmbuf_free(m);
+#endif
+ } else
+ rte_pktmbuf_free(m);
+
+}
+
+#define MINIMUM_SLEEP_TIME 1
+#define SUSPEND_THRESHOLD 300
+
+static inline uint32_t
+power_idle_heuristic(uint32_t zero_rx_packet_count)
+{
+ /* If zero count is less than 100, sleep 1us */
+ if (zero_rx_packet_count < SUSPEND_THRESHOLD)
+ return MINIMUM_SLEEP_TIME;
+ /* If zero count is less than 1000, sleep 100 us which is the
+ minimum latency switching from C3/C6 to C0
+ */
+ else
+ return SUSPEND_THRESHOLD;
+
+ return 0;
+}
+
+static inline enum freq_scale_hint_t
+power_freq_scaleup_heuristic(unsigned lcore_id,
+ uint8_t port_id,
+ uint16_t queue_id)
+{
+/**
+ * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
+ * per iteration
+ */
+#define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST
+#define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2)
+#define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3)
+#define FREQ_UP_TREND1_ACC 1
+#define FREQ_UP_TREND2_ACC 100
+#define FREQ_UP_THRESHOLD 10000
+
+ if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) {
+ stats[lcore_id].trend = 0;
+ return FREQ_HIGHEST;
+ } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0))
+ stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
+ else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id,
+ FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0))
+ stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
+
+ if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
+ stats[lcore_id].trend = 0;
+ return FREQ_HIGHER;
+ }
+
+ return FREQ_CURRENT;
+}
+
+/**
+ * force polling thread sleep until one-shot rx interrupt triggers
+ * @param port_id
+ * Port id.
+ * @param queue_id
+ * Rx queue id.
+ * @return
+ * 0 on success
+ */
+static int
+sleep_until_rx_interrupt(int num)
+{
+ struct rte_epoll_event event[num];
+ int n, i;
+ uint8_t port_id, queue_id;
+ void *data;
+
+ RTE_LOG(INFO, L3FWD_POWER,
+ "lcore %u sleeps until interrupt triggers\n",
+ rte_lcore_id());
+
+ n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1);
+ for (i = 0; i < n; i++) {
+ data = event[i].epdata.data;
+ port_id = ((uintptr_t)data) >> CHAR_BIT;
+ queue_id = ((uintptr_t)data) &
+ RTE_LEN2MASK(CHAR_BIT, uint8_t);
+ rte_eth_dev_rx_intr_disable(port_id, queue_id);
+ RTE_LOG(INFO, L3FWD_POWER,
+ "lcore %u is waked up from rx interrupt on"
+ " port %d queue %d\n",
+ rte_lcore_id(), port_id, queue_id);
+ }
+
+ return 0;
+}
+
+static void turn_on_intr(struct lcore_conf *qconf)
+{
+ int i;
+ struct lcore_rx_queue *rx_queue;
+ uint8_t port_id, queue_id;
+
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ rx_queue = &(qconf->rx_queue_list[i]);
+ port_id = rx_queue->port_id;
+ queue_id = rx_queue->queue_id;
+
+ rte_spinlock_lock(&(locks[port_id]));
+ rte_eth_dev_rx_intr_enable(port_id, queue_id);
+ rte_spinlock_unlock(&(locks[port_id]));
+ }
+}
+
+static int event_register(struct lcore_conf *qconf)
+{
+ struct lcore_rx_queue *rx_queue;
+ uint8_t portid, queueid;
+ uint32_t data;
+ int ret;
+ int i;
+
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ rx_queue = &(qconf->rx_queue_list[i]);
+ portid = rx_queue->port_id;
+ queueid = rx_queue->queue_id;
+ data = portid << CHAR_BIT | queueid;
+
+ ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
+ RTE_EPOLL_PER_THREAD,
+ RTE_INTR_EVENT_ADD,
+ (void *)((uintptr_t)data));
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+/* main processing loop */
+static int
+main_loop(__attribute__((unused)) void *dummy)
+{
+ struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
+ unsigned lcore_id;
+ uint64_t prev_tsc, diff_tsc, cur_tsc;
+ uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
+ int i, j, nb_rx;
+ uint8_t portid, queueid;
+ struct lcore_conf *qconf;
+ struct lcore_rx_queue *rx_queue;
+ enum freq_scale_hint_t lcore_scaleup_hint;
+ uint32_t lcore_rx_idle_count = 0;
+ uint32_t lcore_idle_hint = 0;
+ int intr_en = 0;
+
+ const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
+
+ prev_tsc = 0;
+
+ lcore_id = rte_lcore_id();
+ qconf = &lcore_conf[lcore_id];
+
+ if (qconf->n_rx_queue == 0) {
+ RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
+ return 0;
+ }
+
+ RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
+
+ for (i = 0; i < qconf->n_rx_queue; i++) {
+ portid = qconf->rx_queue_list[i].port_id;
+ queueid = qconf->rx_queue_list[i].queue_id;
+ RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu "
+ "rxqueueid=%hhu\n", lcore_id, portid, queueid);
+ }
+
+ /* add into event wait list */
+ if (event_register(qconf) == 0)
+ intr_en = 1;
+ else
+ RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
+
+ while (1) {
+ stats[lcore_id].nb_iteration_looped++;
+
+ cur_tsc = rte_rdtsc();
+ cur_tsc_power = cur_tsc;
+
+ /*
+ * TX burst queue drain
+ */
+ diff_tsc = cur_tsc - prev_tsc;
+ if (unlikely(diff_tsc > drain_tsc)) {
+ for (i = 0; i < qconf->n_tx_port; ++i) {
+ portid = qconf->tx_port_id[i];
+ rte_eth_tx_buffer_flush(portid,
+ qconf->tx_queue_id[portid],
+ qconf->tx_buffer[portid]);
+ }
+ prev_tsc = cur_tsc;
+ }
+
+ diff_tsc_power = cur_tsc_power - prev_tsc_power;
+ if (diff_tsc_power > TIMER_RESOLUTION_CYCLES) {
+ rte_timer_manage();
+ prev_tsc_power = cur_tsc_power;
+ }
+
+start_rx:
+ /*
+ * Read packet from RX queues
+ */
+ lcore_scaleup_hint = FREQ_CURRENT;
+ lcore_rx_idle_count = 0;
+ for (i = 0; i < qconf->n_rx_queue; ++i) {
+ rx_queue = &(qconf->rx_queue_list[i]);
+ rx_queue->idle_hint = 0;
+ portid = rx_queue->port_id;
+ queueid = rx_queue->queue_id;
+
+ nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
+ MAX_PKT_BURST);
+
+ stats[lcore_id].nb_rx_processed += nb_rx;
+ if (unlikely(nb_rx == 0)) {
+ /**
+ * no packet received from rx queue, try to
+ * sleep for a while forcing CPU enter deeper
+ * C states.
+ */
+ rx_queue->zero_rx_packet_count++;
+
+ if (rx_queue->zero_rx_packet_count <=
+ MIN_ZERO_POLL_COUNT)
+ continue;
+
+ rx_queue->idle_hint = power_idle_heuristic(\
+ rx_queue->zero_rx_packet_count);
+ lcore_rx_idle_count++;
+ } else {
+ rx_queue->zero_rx_packet_count = 0;
+
+ /**
+ * do not scale up frequency immediately as
+ * user to kernel space communication is costly
+ * which might impact packet I/O for received
+ * packets.
+ */
+ rx_queue->freq_up_hint =
+ power_freq_scaleup_heuristic(lcore_id,
+ portid, queueid);
+ }
+
+ /* Prefetch first packets */
+ for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(
+ pkts_burst[j], void *));
+ }
+
+ /* Prefetch and forward already prefetched packets */
+ for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
+ j + PREFETCH_OFFSET], void *));
+ l3fwd_simple_forward(pkts_burst[j], portid,
+ qconf);
+ }
+
+ /* Forward remaining prefetched packets */
+ for (; j < nb_rx; j++) {
+ l3fwd_simple_forward(pkts_burst[j], portid,
+ qconf);
+ }
+ }
+
+ if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
+ for (i = 1, lcore_scaleup_hint =
+ qconf->rx_queue_list[0].freq_up_hint;
+ i < qconf->n_rx_queue; ++i) {
+ rx_queue = &(qconf->rx_queue_list[i]);
+ if (rx_queue->freq_up_hint >
+ lcore_scaleup_hint)
+ lcore_scaleup_hint =
+ rx_queue->freq_up_hint;
+ }
+
+ if (lcore_scaleup_hint == FREQ_HIGHEST) {
+ if (rte_power_freq_max)
+ rte_power_freq_max(lcore_id);
+ } else if (lcore_scaleup_hint == FREQ_HIGHER) {
+ if (rte_power_freq_up)
+ rte_power_freq_up(lcore_id);
+ }
+ } else {
+ /**
+ * All Rx queues empty in recent consecutive polls,
+ * sleep in a conservative manner, meaning sleep as
+ * less as possible.
+ */
+ for (i = 1, lcore_idle_hint =
+ qconf->rx_queue_list[0].idle_hint;
+ i < qconf->n_rx_queue; ++i) {
+ rx_queue = &(qconf->rx_queue_list[i]);
+ if (rx_queue->idle_hint < lcore_idle_hint)
+ lcore_idle_hint = rx_queue->idle_hint;
+ }
+
+ if (lcore_idle_hint < SUSPEND_THRESHOLD)
+ /**
+ * execute "pause" instruction to avoid context
+ * switch which generally take hundred of
+ * microseconds for short sleep.
+ */
+ rte_delay_us(lcore_idle_hint);
+ else {
+ /* suspend until rx interrupt trigges */
+ if (intr_en) {
+ turn_on_intr(qconf);
+ sleep_until_rx_interrupt(
+ qconf->n_rx_queue);
+ }
+ /* start receiving packets immediately */
+ goto start_rx;
+ }
+ stats[lcore_id].sleep_time += lcore_idle_hint;
+ }
+ }
+}
+
+static int
+check_lcore_params(void)
+{
+ uint8_t queue, lcore;
+ uint16_t i;
+ int socketid;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ queue = lcore_params[i].queue_id;
+ if (queue >= MAX_RX_QUEUE_PER_PORT) {
+ printf("invalid queue number: %hhu\n", queue);
+ return -1;
+ }
+ lcore = lcore_params[i].lcore_id;
+ if (!rte_lcore_is_enabled(lcore)) {
+ printf("error: lcore %hhu is not enabled in lcore "
+ "mask\n", lcore);
+ return -1;
+ }
+ if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
+ (numa_on == 0)) {
+ printf("warning: lcore %hhu is on socket %d with numa "
+ "off\n", lcore, socketid);
+ }
+ }
+ return 0;
+}
+
+static int
+check_port_config(const unsigned nb_ports)
+{
+ unsigned portid;
+ uint16_t i;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ portid = lcore_params[i].port_id;
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("port %u is not enabled in port mask\n",
+ portid);
+ return -1;
+ }
+ if (portid >= nb_ports) {
+ printf("port %u is not present on the board\n",
+ portid);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static uint8_t
+get_port_n_rx_queues(const uint8_t port)
+{
+ int queue = -1;
+ uint16_t i;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ if (lcore_params[i].port_id == port &&
+ lcore_params[i].queue_id > queue)
+ queue = lcore_params[i].queue_id;
+ }
+ return (uint8_t)(++queue);
+}
+
+static int
+init_lcore_rx_queues(void)
+{
+ uint16_t i, nb_rx_queue;
+ uint8_t lcore;
+
+ for (i = 0; i < nb_lcore_params; ++i) {
+ lcore = lcore_params[i].lcore_id;
+ nb_rx_queue = lcore_conf[lcore].n_rx_queue;
+ if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
+ printf("error: too many queues (%u) for lcore: %u\n",
+ (unsigned)nb_rx_queue + 1, (unsigned)lcore);
+ return -1;
+ } else {
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
+ lcore_params[i].port_id;
+ lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
+ lcore_params[i].queue_id;
+ lcore_conf[lcore].n_rx_queue++;
+ }
+ }
+ return 0;
+}
+
+/* display usage */
+static void
+print_usage(const char *prgname)
+{
+ printf ("%s [EAL options] -- -p PORTMASK -P"
+ " [--config (port,queue,lcore)[,(port,queue,lcore]]"
+ " [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
+ " -p PORTMASK: hexadecimal bitmask of ports to configure\n"
+ " -P : enable promiscuous mode\n"
+ " --config (port,queue,lcore): rx queues configuration\n"
+ " --no-numa: optional, disable numa awareness\n"
+ " --enable-jumbo: enable jumbo frame"
+ " which max packet len is PKTLEN in decimal (64-9600)\n",
+ prgname);
+}
+
+static int parse_max_pkt_len(const char *pktlen)
+{
+ char *end = NULL;
+ unsigned long len;
+
+ /* parse decimal string */
+ len = strtoul(pktlen, &end, 10);
+ if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (len == 0)
+ return -1;
+
+ return len;
+}
+
+static int
+parse_portmask(const char *portmask)
+{
+ char *end = NULL;
+ unsigned long pm;
+
+ /* parse hexadecimal string */
+ pm = strtoul(portmask, &end, 16);
+ if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
+ return -1;
+
+ if (pm == 0)
+ return -1;
+
+ return pm;
+}
+
+static int
+parse_config(const char *q_arg)
+{
+ char s[256];
+ const char *p, *p0 = q_arg;
+ char *end;
+ enum fieldnames {
+ FLD_PORT = 0,
+ FLD_QUEUE,
+ FLD_LCORE,
+ _NUM_FLD
+ };
+ unsigned long int_fld[_NUM_FLD];
+ char *str_fld[_NUM_FLD];
+ int i;
+ unsigned size;
+
+ nb_lcore_params = 0;
+
+ while ((p = strchr(p0,'(')) != NULL) {
+ ++p;
+ if((p0 = strchr(p,')')) == NULL)
+ return -1;
+
+ size = p0 - p;
+ if(size >= sizeof(s))
+ return -1;
+
+ snprintf(s, sizeof(s), "%.*s", size, p);
+ if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
+ _NUM_FLD)
+ return -1;
+ for (i = 0; i < _NUM_FLD; i++){
+ errno = 0;
+ int_fld[i] = strtoul(str_fld[i], &end, 0);
+ if (errno != 0 || end == str_fld[i] || int_fld[i] >
+ 255)
+ return -1;
+ }
+ if (nb_lcore_params >= MAX_LCORE_PARAMS) {
+ printf("exceeded max number of lcore params: %hu\n",
+ nb_lcore_params);
+ return -1;
+ }
+ lcore_params_array[nb_lcore_params].port_id =
+ (uint8_t)int_fld[FLD_PORT];
+ lcore_params_array[nb_lcore_params].queue_id =
+ (uint8_t)int_fld[FLD_QUEUE];
+ lcore_params_array[nb_lcore_params].lcore_id =
+ (uint8_t)int_fld[FLD_LCORE];
+ ++nb_lcore_params;
+ }
+ lcore_params = lcore_params_array;
+
+ return 0;
+}
+
+/* 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[] = {
+ {"config", 1, 0, 0},
+ {"no-numa", 0, 0, 0},
+ {"enable-jumbo", 0, 0, 0},
+ {NULL, 0, 0, 0}
+ };
+
+ argvopt = argv;
+
+ while ((opt = getopt_long(argc, argvopt, "p:P",
+ lgopts, &option_index)) != EOF) {
+
+ switch (opt) {
+ /* portmask */
+ case 'p':
+ enabled_port_mask = parse_portmask(optarg);
+ if (enabled_port_mask == 0) {
+ printf("invalid portmask\n");
+ print_usage(prgname);
+ return -1;
+ }
+ break;
+ case 'P':
+ printf("Promiscuous mode selected\n");
+ promiscuous_on = 1;
+ break;
+
+ /* long options */
+ case 0:
+ if (!strncmp(lgopts[option_index].name, "config", 6)) {
+ ret = parse_config(optarg);
+ if (ret) {
+ printf("invalid config\n");
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ "no-numa", 7)) {
+ printf("numa is disabled \n");
+ numa_on = 0;
+ }
+
+ if (!strncmp(lgopts[option_index].name,
+ "enable-jumbo", 12)) {
+ struct option lenopts =
+ {"max-pkt-len", required_argument, \
+ 0, 0};
+
+ printf("jumbo frame is enabled \n");
+ port_conf.rxmode.jumbo_frame = 1;
+
+ /**
+ * if no max-pkt-len set, use the default value
+ * ETHER_MAX_LEN
+ */
+ if (0 == getopt_long(argc, argvopt, "",
+ &lenopts, &option_index)) {
+ ret = parse_max_pkt_len(optarg);
+ if ((ret < 64) ||
+ (ret > MAX_JUMBO_PKT_LEN)){
+ printf("invalid packet "
+ "length\n");
+ print_usage(prgname);
+ return -1;
+ }
+ port_conf.rxmode.max_rx_pkt_len = ret;
+ }
+ printf("set jumbo frame "
+ "max packet length to %u\n",
+ (unsigned int)port_conf.rxmode.max_rx_pkt_len);
+ }
+
+ break;
+
+ default:
+ print_usage(prgname);
+ return -1;
+ }
+ }
+
+ if (optind >= 0)
+ argv[optind-1] = prgname;
+
+ ret = optind-1;
+ optind = 0; /* reset getopt lib */
+ return ret;
+}
+
+static void
+print_ethaddr(const char *name, const struct ether_addr *eth_addr)
+{
+ char buf[ETHER_ADDR_FMT_SIZE];
+ ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
+ printf("%s%s", name, buf);
+}
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+static void
+setup_hash(int socketid)
+{
+ struct rte_hash_parameters ipv4_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(struct ipv4_5tuple),
+ .hash_func = DEFAULT_HASH_FUNC,
+ .hash_func_init_val = 0,
+ };
+
+ struct rte_hash_parameters ipv6_l3fwd_hash_params = {
+ .name = NULL,
+ .entries = L3FWD_HASH_ENTRIES,
+ .key_len = sizeof(struct ipv6_5tuple),
+ .hash_func = DEFAULT_HASH_FUNC,
+ .hash_func_init_val = 0,
+ };
+
+ unsigned i;
+ int ret;
+ 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);
+
+
+ /* populate the ipv4 hash */
+ for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
+ ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
+ (void *) &ipv4_l3fwd_route_array[i].key);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
+ "l3fwd hash on socket %d\n", i, socketid);
+ }
+ ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
+ printf("Hash: Adding key\n");
+ print_ipv4_key(ipv4_l3fwd_route_array[i].key);
+ }
+
+ /* populate the ipv6 hash */
+ for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
+ ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
+ (void *) &ipv6_l3fwd_route_array[i].key);
+ if (ret < 0) {
+ rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
+ "l3fwd hash on socket %d\n", i, socketid);
+ }
+ ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
+ printf("Hash: Adding key\n");
+ print_ipv6_key(ipv6_l3fwd_route_array[i].key);
+ }
+}
+#endif
+
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
+static void
+setup_lpm(int socketid)
+{
+ unsigned i;
+ int ret;
+ char s[64];
+
+ /* create the LPM table */
+ struct rte_lpm_config lpm_ipv4_config;
+
+ lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
+ lpm_ipv4_config.number_tbl8s = 256;
+ lpm_ipv4_config.flags = 0;
+
+ snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
+ 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++) {
+ 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);
+ }
+}
+#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];
+#if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
+ qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
+#endif
+ }
+ return 0;
+}
+
+/* Check the link status of all ports in up to 9s, and print them finally */
+static void
+check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
+ uint8_t portid, count, all_ports_up, print_flag = 0;
+ struct rte_eth_link link;
+
+ printf("\nChecking link status");
+ fflush(stdout);
+ for (count = 0; count <= MAX_CHECK_TIME; count++) {
+ all_ports_up = 1;
+ for (portid = 0; portid < port_num; portid++) {
+ if ((port_mask & (1 << portid)) == 0)
+ continue;
+ memset(&link, 0, sizeof(link));
+ rte_eth_link_get_nowait(portid, &link);
+ /* print link status if flag set */
+ if (print_flag == 1) {
+ if (link.link_status)
+ printf("Port %d Link Up - speed %u "
+ "Mbps - %s\n", (uint8_t)portid,
+ (unsigned)link.link_speed,
+ (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+ ("full-duplex") : ("half-duplex\n"));
+ else
+ printf("Port %d Link Down\n",
+ (uint8_t)portid);
+ continue;
+ }
+ /* clear all_ports_up flag if any link down */
+ if (link.link_status == 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");
+ }
+ }
+}
+
+int
+main(int argc, char **argv)
+{
+ struct lcore_conf *qconf;
+ struct rte_eth_dev_info dev_info;
+ struct rte_eth_txconf *txconf;
+ int ret;
+ unsigned nb_ports;
+ uint16_t queueid;
+ unsigned lcore_id;
+ uint64_t hz;
+ uint32_t n_tx_queue, nb_lcores;
+ uint32_t dev_rxq_num, dev_txq_num;
+ uint8_t portid, nb_rx_queue, queue, socketid;
+
+ /* catch SIGINT and restore cpufreq governor to ondemand */
+ signal(SIGINT, signal_exit_now);
+
+ /* init EAL */
+ ret = rte_eal_init(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
+ argc -= ret;
+ argv += ret;
+
+ /* init RTE timer library to be used late */
+ rte_timer_subsystem_init();
+
+ /* parse application arguments (after the EAL ones) */
+ ret = parse_args(argc, argv);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
+
+ if (check_lcore_params() < 0)
+ rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
+
+ ret = init_lcore_rx_queues();
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
+
+
+ nb_ports = rte_eth_dev_count();
+ if (nb_ports > RTE_MAX_ETHPORTS)
+ nb_ports = RTE_MAX_ETHPORTS;
+
+ if (check_port_config(nb_ports) < 0)
+ rte_exit(EXIT_FAILURE, "check_port_config failed\n");
+
+ nb_lcores = rte_lcore_count();
+
+ /* initialize all ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ /* skip ports that are not enabled */
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ printf("\nSkipping disabled port %d\n", portid);
+ continue;
+ }
+
+ /* init port */
+ printf("Initializing port %d ... ", portid );
+ fflush(stdout);
+
+ rte_eth_dev_info_get(portid, &dev_info);
+ dev_rxq_num = dev_info.max_rx_queues;
+ dev_txq_num = dev_info.max_tx_queues;
+
+ nb_rx_queue = get_port_n_rx_queues(portid);
+ if (nb_rx_queue > dev_rxq_num)
+ rte_exit(EXIT_FAILURE,
+ "Cannot configure not existed rxq: "
+ "port=%d\n", portid);
+
+ n_tx_queue = nb_lcores;
+ if (n_tx_queue > dev_txq_num)
+ n_tx_queue = dev_txq_num;
+ printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
+ nb_rx_queue, (unsigned)n_tx_queue );
+ ret = rte_eth_dev_configure(portid, nb_rx_queue,
+ (uint16_t)n_tx_queue, &port_conf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "Cannot configure device: "
+ "err=%d, port=%d\n", ret, portid);
+
+ rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
+ print_ethaddr(" Address:", &ports_eth_addr[portid]);
+ printf(", ");
+
+ /* init memory */
+ ret = init_mem(NB_MBUF);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "init_mem failed\n");
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ /* Initialize TX buffers */
+ qconf = &lcore_conf[lcore_id];
+ qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
+ RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
+ rte_eth_dev_socket_id(portid));
+ if (qconf->tx_buffer[portid] == NULL)
+ rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
+ (unsigned) portid);
+
+ rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
+ }
+
+ /* 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 (queueid >= dev_txq_num)
+ continue;
+
+ if (numa_on)
+ socketid = \
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
+ fflush(stdout);
+
+ rte_eth_dev_info_get(portid, &dev_info);
+ txconf = &dev_info.default_txconf;
+ if (port_conf.rxmode.jumbo_frame)
+ txconf->txq_flags = 0;
+ ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
+ socketid, txconf);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_tx_queue_setup: err=%d, "
+ "port=%d\n", ret, portid);
+
+ qconf = &lcore_conf[lcore_id];
+ qconf->tx_queue_id[portid] = queueid;
+ queueid++;
+
+ qconf->tx_port_id[qconf->n_tx_port] = portid;
+ qconf->n_tx_port++;
+ }
+ printf("\n");
+ }
+
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+
+ /* init power management library */
+ ret = rte_power_init(lcore_id);
+ if (ret)
+ RTE_LOG(ERR, POWER,
+ "Library initialization failed on core %u\n", lcore_id);
+
+ /* init timer structures for each enabled lcore */
+ rte_timer_init(&power_timers[lcore_id]);
+ hz = rte_get_timer_hz();
+ rte_timer_reset(&power_timers[lcore_id],
+ hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id,
+ power_timer_cb, NULL);
+
+ qconf = &lcore_conf[lcore_id];
+ printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
+ fflush(stdout);
+ /* init RX queues */
+ for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
+ portid = qconf->rx_queue_list[queue].port_id;
+ queueid = qconf->rx_queue_list[queue].queue_id;
+
+ if (numa_on)
+ socketid = \
+ (uint8_t)rte_lcore_to_socket_id(lcore_id);
+ else
+ socketid = 0;
+
+ printf("rxq=%d,%d,%d ", portid, queueid, socketid);
+ fflush(stdout);
+
+ ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
+ socketid, NULL,
+ pktmbuf_pool[socketid]);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE,
+ "rte_eth_rx_queue_setup: err=%d, "
+ "port=%d\n", ret, portid);
+ }
+ }
+
+ printf("\n");
+
+ /* start ports */
+ for (portid = 0; portid < nb_ports; portid++) {
+ if ((enabled_port_mask & (1 << portid)) == 0) {
+ continue;
+ }
+ /* Start device */
+ ret = rte_eth_dev_start(portid);
+ if (ret < 0)
+ rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
+ "port=%d\n", ret, portid);
+ /*
+ * If enabled, put device in promiscuous mode.
+ * This allows IO forwarding mode to forward packets
+ * to itself through 2 cross-connected ports of the
+ * target machine.
+ */
+ if (promiscuous_on)
+ rte_eth_promiscuous_enable(portid);
+ /* initialize spinlock for each port */
+ rte_spinlock_init(&(locks[portid]));
+ }
+
+ check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
+ /* launch per-lcore init on every lcore */
+ rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
+ RTE_LCORE_FOREACH_SLAVE(lcore_id) {
+ if (rte_eal_wait_lcore(lcore_id) < 0)
+ return -1;
+ }
+
+ return 0;
+}
Code Review / deb_dpdk.git / blobdiff