1 /*- 2 * BSD LICENSE 3 * 4 * Copyright 2017 Mellanox. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Mellanox. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <stdint.h> 37 #include <inttypes.h> 38 #include <sys/types.h> 39 #include <sys/queue.h> 40 #include <netinet/in.h> 41 #include <setjmp.h> 42 #include <stdarg.h> 43 #include <ctype.h> 44 #include <errno.h> 45 #include <getopt.h> 46 #include <signal.h> 47 #include <stdbool.h> 48 49 #include <rte_eal.h> 50 #include <rte_common.h> 51 #include <rte_malloc.h> 52 #include <rte_ether.h> 53 #include <rte_ethdev.h> 54 #include <rte_mempool.h> 55 #include <rte_mbuf.h> 56 #include <rte_net.h> 57 #include <rte_flow.h> 58 #include <rte_cycles.h> 59 60 static volatile bool force_quit; 61 62 static uint16_t port_id; 63 static uint16_t nr_queues = 5; 64 static uint8_t selected_queue = 1; 65 struct rte_mempool *mbuf_pool; 66 struct rte_flow *flow; 67 68 #define SRC_IP ((0<<24) + (0<<16) + (0<<8) + 0) /* src ip = 0.0.0.0 */ 69 #define DEST_IP ((192<<24) + (168<<16) + (1<<8) + 1) /* dest ip = 192.168.1.1 */ 70 #define FULL_MASK 0xffffffff /* full mask */ 71 #define EMPTY_MASK 0x0 /* empty mask */ 72 73 #include "flow_blocks.c" 74 75 static inline void 76 print_ether_addr(const char *what, struct ether_addr *eth_addr) 77 { 78 char buf[ETHER_ADDR_FMT_SIZE]; 79 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 80 printf("%s%s", what, buf); 81 } 82 83 static void 84 main_loop(void) 85 { 86 struct rte_mbuf *mbufs[32]; 87 struct ether_hdr *eth_hdr; 88 struct rte_flow_error error; 89 uint16_t nb_rx; 90 uint16_t i; 91 uint16_t j; 92 93 while (!force_quit) { 94 for (i = 0; i < nr_queues; i++) { 95 nb_rx = rte_eth_rx_burst(port_id, 96 i, mbufs, 32); 97 if (nb_rx) { 98 for (j = 0; j < nb_rx; j++) { 99 struct rte_mbuf *m = mbufs[j]; 100 101 eth_hdr = rte_pktmbuf_mtod(m, 102 struct ether_hdr *); 103 print_ether_addr("src=", 104 ð_hdr->s_addr); 105 print_ether_addr(" - dst=", 106 ð_hdr->d_addr); 107 printf(" - queue=0x%x", 108 (unsigned int)i); 109 printf("\n"); 110 111 rte_pktmbuf_free(m); 112 } 113 } 114 } 115 } 116 117 /* closing and releasing resources */ 118 rte_flow_flush(port_id, &error); 119 rte_eth_dev_stop(port_id); 120 rte_eth_dev_close(port_id); 121 } 122 123 #define CHECK_INTERVAL 1000 /* 100ms */ 124 #define MAX_REPEAT_TIMES 90 /* 9s (90 * 100ms) in total */ 125 126 static void 127 assert_link_status(void) 128 { 129 struct rte_eth_link link; 130 uint8_t rep_cnt = MAX_REPEAT_TIMES; 131 132 memset(&link, 0, sizeof(link)); 133 do { 134 rte_eth_link_get(port_id, &link); 135 if (link.link_status == ETH_LINK_UP) 136 break; 137 rte_delay_ms(CHECK_INTERVAL); 138 } while (--rep_cnt); 139 140 if (link.link_status == ETH_LINK_DOWN) 141 rte_exit(EXIT_FAILURE, ":: error: link is still down\n"); 142 } 143 144 static void 145 init_port(void) 146 { 147 int ret; 148 uint16_t i; 149 struct rte_eth_conf port_conf = { 150 .rxmode = { 151 .split_hdr_size = 0, 152 .ignore_offload_bitfield = 1, 153 .offloads = DEV_RX_OFFLOAD_CRC_STRIP, 154 }, 155 .txmode = { 156 .offloads = 157 DEV_TX_OFFLOAD_VLAN_INSERT | 158 DEV_TX_OFFLOAD_IPV4_CKSUM | 159 DEV_TX_OFFLOAD_UDP_CKSUM | 160 DEV_TX_OFFLOAD_TCP_CKSUM | 161 DEV_TX_OFFLOAD_SCTP_CKSUM | 162 DEV_TX_OFFLOAD_TCP_TSO, 163 }, 164 }; 165 struct rte_eth_txconf txq_conf; 166 struct rte_eth_rxconf rxq_conf; 167 struct rte_eth_dev_info dev_info; 168 169 printf(":: initializing port: %d\n", port_id); 170 ret = rte_eth_dev_configure(port_id, 171 nr_queues, nr_queues, &port_conf); 172 if (ret < 0) { 173 rte_exit(EXIT_FAILURE, 174 ":: cannot configure device: err=%d, port=%u\n", 175 ret, port_id); 176 } 177 178 rte_eth_dev_info_get(port_id, &dev_info); 179 rxq_conf = dev_info.default_rxconf; 180 rxq_conf.offloads = port_conf.rxmode.offloads; 181 /* only set Rx queues: something we care only so far */ 182 for (i = 0; i < nr_queues; i++) { 183 ret = rte_eth_rx_queue_setup(port_id, i, 512, 184 rte_eth_dev_socket_id(port_id), 185 &rxq_conf, 186 mbuf_pool); 187 if (ret < 0) { 188 rte_exit(EXIT_FAILURE, 189 ":: Rx queue setup failed: err=%d, port=%u\n", 190 ret, port_id); 191 } 192 } 193 194 txq_conf = dev_info.default_txconf; 195 txq_conf.offloads = port_conf.txmode.offloads; 196 197 for (i = 0; i < nr_queues; i++) { 198 ret = rte_eth_tx_queue_setup(port_id, i, 512, 199 rte_eth_dev_socket_id(port_id), 200 &txq_conf); 201 if (ret < 0) { 202 rte_exit(EXIT_FAILURE, 203 ":: Tx queue setup failed: err=%d, port=%u\n", 204 ret, port_id); 205 } 206 } 207 208 rte_eth_promiscuous_enable(port_id); 209 ret = rte_eth_dev_start(port_id); 210 if (ret < 0) { 211 rte_exit(EXIT_FAILURE, 212 "rte_eth_dev_start:err=%d, port=%u\n", 213 ret, port_id); 214 } 215 216 assert_link_status(); 217 218 printf(":: initializing port: %d done\n", port_id); 219 } 220 221 static void 222 signal_handler(int signum) 223 { 224 if (signum == SIGINT || signum == SIGTERM) { 225 printf("\n\nSignal %d received, preparing to exit...\n", 226 signum); 227 force_quit = true; 228 } 229 } 230 231 int 232 main(int argc, char **argv) 233 { 234 int ret; 235 uint8_t nr_ports; 236 struct rte_flow_error error; 237 238 ret = rte_eal_init(argc, argv); 239 if (ret < 0) 240 rte_exit(EXIT_FAILURE, ":: invalid EAL arguments\n"); 241 242 force_quit = false; 243 signal(SIGINT, signal_handler); 244 signal(SIGTERM, signal_handler); 245 246 nr_ports = rte_eth_dev_count(); 247 if (nr_ports == 0) 248 rte_exit(EXIT_FAILURE, ":: no Ethernet ports found\n"); 249 port_id = 0; 250 if (nr_ports != 1) { 251 printf(":: warn: %d ports detected, but we use only one: port %u\n", 252 nr_ports, port_id); 253 } 254 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", 4096, 128, 0, 255 RTE_MBUF_DEFAULT_BUF_SIZE, 256 rte_socket_id()); 257 if (mbuf_pool == NULL) 258 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); 259 260 init_port(); 261 262 /* create flow for send packet with */ 263 flow = generate_ipv4_flow(port_id, selected_queue, 264 SRC_IP, EMPTY_MASK, 265 DEST_IP, FULL_MASK, &error); 266 if (!flow) { 267 printf("Flow can't be created %d message: %s\n", 268 error.type, 269 error.message ? error.message : "(no stated reason)"); 270 rte_exit(EXIT_FAILURE, "error in creating flow"); 271 } 272 273 main_loop(); 274 275 return 0; 276 } 277