1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2017 Mellanox Technologies, Ltd 3 */ 4 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <string.h> 8 #include <stdint.h> 9 #include <inttypes.h> 10 #include <sys/types.h> 11 #include <sys/queue.h> 12 #include <netinet/in.h> 13 #include <setjmp.h> 14 #include <stdarg.h> 15 #include <ctype.h> 16 #include <errno.h> 17 #include <getopt.h> 18 #include <signal.h> 19 #include <stdbool.h> 20 21 #include <rte_eal.h> 22 #include <rte_common.h> 23 #include <rte_malloc.h> 24 #include <rte_ether.h> 25 #include <rte_ethdev.h> 26 #include <rte_mempool.h> 27 #include <rte_mbuf.h> 28 #include <rte_net.h> 29 #include <rte_flow.h> 30 #include <rte_cycles.h> 31 32 static volatile bool force_quit; 33 34 static uint16_t port_id; 35 static uint16_t nr_queues = 5; 36 static uint8_t selected_queue = 1; 37 struct rte_mempool *mbuf_pool; 38 struct rte_flow *flow; 39 40 #define SRC_IP ((0<<24) + (0<<16) + (0<<8) + 0) /* src ip = 0.0.0.0 */ 41 #define DEST_IP ((192<<24) + (168<<16) + (1<<8) + 1) /* dest ip = 192.168.1.1 */ 42 #define FULL_MASK 0xffffffff /* full mask */ 43 #define EMPTY_MASK 0x0 /* empty mask */ 44 45 #include "flow_blocks.c" 46 47 static inline void 48 print_ether_addr(const char *what, struct ether_addr *eth_addr) 49 { 50 char buf[ETHER_ADDR_FMT_SIZE]; 51 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 52 printf("%s%s", what, buf); 53 } 54 55 static void 56 main_loop(void) 57 { 58 struct rte_mbuf *mbufs[32]; 59 struct ether_hdr *eth_hdr; 60 struct rte_flow_error error; 61 uint16_t nb_rx; 62 uint16_t i; 63 uint16_t j; 64 65 while (!force_quit) { 66 for (i = 0; i < nr_queues; i++) { 67 nb_rx = rte_eth_rx_burst(port_id, 68 i, mbufs, 32); 69 if (nb_rx) { 70 for (j = 0; j < nb_rx; j++) { 71 struct rte_mbuf *m = mbufs[j]; 72 73 eth_hdr = rte_pktmbuf_mtod(m, 74 struct ether_hdr *); 75 print_ether_addr("src=", 76 ð_hdr->s_addr); 77 print_ether_addr(" - dst=", 78 ð_hdr->d_addr); 79 printf(" - queue=0x%x", 80 (unsigned int)i); 81 printf("\n"); 82 83 rte_pktmbuf_free(m); 84 } 85 } 86 } 87 } 88 89 /* closing and releasing resources */ 90 rte_flow_flush(port_id, &error); 91 rte_eth_dev_stop(port_id); 92 rte_eth_dev_close(port_id); 93 } 94 95 #define CHECK_INTERVAL 1000 /* 100ms */ 96 #define MAX_REPEAT_TIMES 90 /* 9s (90 * 100ms) in total */ 97 98 static void 99 assert_link_status(void) 100 { 101 struct rte_eth_link link; 102 uint8_t rep_cnt = MAX_REPEAT_TIMES; 103 104 memset(&link, 0, sizeof(link)); 105 do { 106 rte_eth_link_get(port_id, &link); 107 if (link.link_status == ETH_LINK_UP) 108 break; 109 rte_delay_ms(CHECK_INTERVAL); 110 } while (--rep_cnt); 111 112 if (link.link_status == ETH_LINK_DOWN) 113 rte_exit(EXIT_FAILURE, ":: error: link is still down\n"); 114 } 115 116 static void 117 init_port(void) 118 { 119 int ret; 120 uint16_t i; 121 struct rte_eth_conf port_conf = { 122 .rxmode = { 123 .split_hdr_size = 0, 124 .ignore_offload_bitfield = 1, 125 .offloads = DEV_RX_OFFLOAD_CRC_STRIP, 126 }, 127 .txmode = { 128 .offloads = 129 DEV_TX_OFFLOAD_VLAN_INSERT | 130 DEV_TX_OFFLOAD_IPV4_CKSUM | 131 DEV_TX_OFFLOAD_UDP_CKSUM | 132 DEV_TX_OFFLOAD_TCP_CKSUM | 133 DEV_TX_OFFLOAD_SCTP_CKSUM | 134 DEV_TX_OFFLOAD_TCP_TSO, 135 }, 136 }; 137 struct rte_eth_txconf txq_conf; 138 struct rte_eth_rxconf rxq_conf; 139 struct rte_eth_dev_info dev_info; 140 141 printf(":: initializing port: %d\n", port_id); 142 ret = rte_eth_dev_configure(port_id, 143 nr_queues, nr_queues, &port_conf); 144 if (ret < 0) { 145 rte_exit(EXIT_FAILURE, 146 ":: cannot configure device: err=%d, port=%u\n", 147 ret, port_id); 148 } 149 150 rte_eth_dev_info_get(port_id, &dev_info); 151 rxq_conf = dev_info.default_rxconf; 152 rxq_conf.offloads = port_conf.rxmode.offloads; 153 /* only set Rx queues: something we care only so far */ 154 for (i = 0; i < nr_queues; i++) { 155 ret = rte_eth_rx_queue_setup(port_id, i, 512, 156 rte_eth_dev_socket_id(port_id), 157 &rxq_conf, 158 mbuf_pool); 159 if (ret < 0) { 160 rte_exit(EXIT_FAILURE, 161 ":: Rx queue setup failed: err=%d, port=%u\n", 162 ret, port_id); 163 } 164 } 165 166 txq_conf = dev_info.default_txconf; 167 txq_conf.offloads = port_conf.txmode.offloads; 168 169 for (i = 0; i < nr_queues; i++) { 170 ret = rte_eth_tx_queue_setup(port_id, i, 512, 171 rte_eth_dev_socket_id(port_id), 172 &txq_conf); 173 if (ret < 0) { 174 rte_exit(EXIT_FAILURE, 175 ":: Tx queue setup failed: err=%d, port=%u\n", 176 ret, port_id); 177 } 178 } 179 180 rte_eth_promiscuous_enable(port_id); 181 ret = rte_eth_dev_start(port_id); 182 if (ret < 0) { 183 rte_exit(EXIT_FAILURE, 184 "rte_eth_dev_start:err=%d, port=%u\n", 185 ret, port_id); 186 } 187 188 assert_link_status(); 189 190 printf(":: initializing port: %d done\n", port_id); 191 } 192 193 static void 194 signal_handler(int signum) 195 { 196 if (signum == SIGINT || signum == SIGTERM) { 197 printf("\n\nSignal %d received, preparing to exit...\n", 198 signum); 199 force_quit = true; 200 } 201 } 202 203 int 204 main(int argc, char **argv) 205 { 206 int ret; 207 uint16_t nr_ports; 208 struct rte_flow_error error; 209 210 ret = rte_eal_init(argc, argv); 211 if (ret < 0) 212 rte_exit(EXIT_FAILURE, ":: invalid EAL arguments\n"); 213 214 force_quit = false; 215 signal(SIGINT, signal_handler); 216 signal(SIGTERM, signal_handler); 217 218 nr_ports = rte_eth_dev_count_avail(); 219 if (nr_ports == 0) 220 rte_exit(EXIT_FAILURE, ":: no Ethernet ports found\n"); 221 port_id = 0; 222 if (nr_ports != 1) { 223 printf(":: warn: %d ports detected, but we use only one: port %u\n", 224 nr_ports, port_id); 225 } 226 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", 4096, 128, 0, 227 RTE_MBUF_DEFAULT_BUF_SIZE, 228 rte_socket_id()); 229 if (mbuf_pool == NULL) 230 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 231 232 init_port(); 233 234 /* create flow for send packet with */ 235 flow = generate_ipv4_flow(port_id, selected_queue, 236 SRC_IP, EMPTY_MASK, 237 DEST_IP, FULL_MASK, &error); 238 if (!flow) { 239 printf("Flow can't be created %d message: %s\n", 240 error.type, 241 error.message ? error.message : "(no stated reason)"); 242 rte_exit(EXIT_FAILURE, "error in creating flow"); 243 } 244 245 main_loop(); 246 247 return 0; 248 } 249