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 rte_ether_addr *eth_addr) 49 { 50 char buf[RTE_ETHER_ADDR_FMT_SIZE]; 51 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr); 52 printf("%s%s", what, buf); 53 } 54 55 static int 56 main_loop(void) 57 { 58 struct rte_mbuf *mbufs[32]; 59 struct rte_ether_hdr *eth_hdr; 60 struct rte_flow_error error; 61 uint16_t nb_rx; 62 uint16_t i; 63 uint16_t j; 64 int ret; 65 66 while (!force_quit) { 67 for (i = 0; i < nr_queues; i++) { 68 nb_rx = rte_eth_rx_burst(port_id, 69 i, mbufs, 32); 70 if (nb_rx) { 71 for (j = 0; j < nb_rx; j++) { 72 struct rte_mbuf *m = mbufs[j]; 73 74 eth_hdr = rte_pktmbuf_mtod(m, 75 struct rte_ether_hdr *); 76 print_ether_addr("src=", 77 ð_hdr->s_addr); 78 print_ether_addr(" - dst=", 79 ð_hdr->d_addr); 80 printf(" - queue=0x%x", 81 (unsigned int)i); 82 printf("\n"); 83 84 rte_pktmbuf_free(m); 85 } 86 } 87 } 88 } 89 90 /* closing and releasing resources */ 91 rte_flow_flush(port_id, &error); 92 ret = rte_eth_dev_stop(port_id); 93 if (ret < 0) 94 printf("Failed to stop port %u: %s", 95 port_id, rte_strerror(-ret)); 96 rte_eth_dev_close(port_id); 97 return ret; 98 } 99 100 #define CHECK_INTERVAL 1000 /* 100ms */ 101 #define MAX_REPEAT_TIMES 90 /* 9s (90 * 100ms) in total */ 102 103 static void 104 assert_link_status(void) 105 { 106 struct rte_eth_link link; 107 uint8_t rep_cnt = MAX_REPEAT_TIMES; 108 int link_get_err = -EINVAL; 109 110 memset(&link, 0, sizeof(link)); 111 do { 112 link_get_err = rte_eth_link_get(port_id, &link); 113 if (link_get_err == 0 && link.link_status == ETH_LINK_UP) 114 break; 115 rte_delay_ms(CHECK_INTERVAL); 116 } while (--rep_cnt); 117 118 if (link_get_err < 0) 119 rte_exit(EXIT_FAILURE, ":: error: link get is failing: %s\n", 120 rte_strerror(-link_get_err)); 121 if (link.link_status == ETH_LINK_DOWN) 122 rte_exit(EXIT_FAILURE, ":: error: link is still down\n"); 123 } 124 125 static void 126 init_port(void) 127 { 128 int ret; 129 uint16_t i; 130 struct rte_eth_conf port_conf = { 131 .rxmode = { 132 .split_hdr_size = 0, 133 }, 134 .txmode = { 135 .offloads = 136 DEV_TX_OFFLOAD_VLAN_INSERT | 137 DEV_TX_OFFLOAD_IPV4_CKSUM | 138 DEV_TX_OFFLOAD_UDP_CKSUM | 139 DEV_TX_OFFLOAD_TCP_CKSUM | 140 DEV_TX_OFFLOAD_SCTP_CKSUM | 141 DEV_TX_OFFLOAD_TCP_TSO, 142 }, 143 }; 144 struct rte_eth_txconf txq_conf; 145 struct rte_eth_rxconf rxq_conf; 146 struct rte_eth_dev_info dev_info; 147 148 ret = rte_eth_dev_info_get(port_id, &dev_info); 149 if (ret != 0) 150 rte_exit(EXIT_FAILURE, 151 "Error during getting device (port %u) info: %s\n", 152 port_id, strerror(-ret)); 153 154 port_conf.txmode.offloads &= dev_info.tx_offload_capa; 155 printf(":: initializing port: %d\n", port_id); 156 ret = rte_eth_dev_configure(port_id, 157 nr_queues, nr_queues, &port_conf); 158 if (ret < 0) { 159 rte_exit(EXIT_FAILURE, 160 ":: cannot configure device: err=%d, port=%u\n", 161 ret, port_id); 162 } 163 164 rxq_conf = dev_info.default_rxconf; 165 rxq_conf.offloads = port_conf.rxmode.offloads; 166 for (i = 0; i < nr_queues; i++) { 167 ret = rte_eth_rx_queue_setup(port_id, i, 512, 168 rte_eth_dev_socket_id(port_id), 169 &rxq_conf, 170 mbuf_pool); 171 if (ret < 0) { 172 rte_exit(EXIT_FAILURE, 173 ":: Rx queue setup failed: err=%d, port=%u\n", 174 ret, port_id); 175 } 176 } 177 178 txq_conf = dev_info.default_txconf; 179 txq_conf.offloads = port_conf.txmode.offloads; 180 181 for (i = 0; i < nr_queues; i++) { 182 ret = rte_eth_tx_queue_setup(port_id, i, 512, 183 rte_eth_dev_socket_id(port_id), 184 &txq_conf); 185 if (ret < 0) { 186 rte_exit(EXIT_FAILURE, 187 ":: Tx queue setup failed: err=%d, port=%u\n", 188 ret, port_id); 189 } 190 } 191 192 ret = rte_eth_promiscuous_enable(port_id); 193 if (ret != 0) 194 rte_exit(EXIT_FAILURE, 195 ":: promiscuous mode enable failed: err=%s, port=%u\n", 196 rte_strerror(-ret), port_id); 197 198 ret = rte_eth_dev_start(port_id); 199 if (ret < 0) { 200 rte_exit(EXIT_FAILURE, 201 "rte_eth_dev_start:err=%d, port=%u\n", 202 ret, port_id); 203 } 204 205 assert_link_status(); 206 207 printf(":: initializing port: %d done\n", port_id); 208 } 209 210 static void 211 signal_handler(int signum) 212 { 213 if (signum == SIGINT || signum == SIGTERM) { 214 printf("\n\nSignal %d received, preparing to exit...\n", 215 signum); 216 force_quit = true; 217 } 218 } 219 220 int 221 main(int argc, char **argv) 222 { 223 int ret; 224 uint16_t nr_ports; 225 struct rte_flow_error error; 226 227 ret = rte_eal_init(argc, argv); 228 if (ret < 0) 229 rte_exit(EXIT_FAILURE, ":: invalid EAL arguments\n"); 230 231 force_quit = false; 232 signal(SIGINT, signal_handler); 233 signal(SIGTERM, signal_handler); 234 235 nr_ports = rte_eth_dev_count_avail(); 236 if (nr_ports == 0) 237 rte_exit(EXIT_FAILURE, ":: no Ethernet ports found\n"); 238 port_id = 0; 239 if (nr_ports != 1) { 240 printf(":: warn: %d ports detected, but we use only one: port %u\n", 241 nr_ports, port_id); 242 } 243 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", 4096, 128, 0, 244 RTE_MBUF_DEFAULT_BUF_SIZE, 245 rte_socket_id()); 246 if (mbuf_pool == NULL) 247 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 248 249 init_port(); 250 251 /* create flow for send packet with */ 252 flow = generate_ipv4_flow(port_id, selected_queue, 253 SRC_IP, EMPTY_MASK, 254 DEST_IP, FULL_MASK, &error); 255 if (!flow) { 256 printf("Flow can't be created %d message: %s\n", 257 error.type, 258 error.message ? error.message : "(no stated reason)"); 259 rte_exit(EXIT_FAILURE, "error in creating flow"); 260 } 261 262 return main_loop(); 263 } 264