1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <stdio.h> 35 #include <getopt.h> 36 37 #include <rte_common.h> 38 #include <rte_eal.h> 39 #include <rte_malloc.h> 40 #include <rte_mempool.h> 41 #include <rte_ethdev.h> 42 #include <rte_cycles.h> 43 #include <rte_mbuf.h> 44 #include <rte_meter.h> 45 46 /* 47 * Traffic metering configuration 48 * 49 */ 50 #define APP_MODE_FWD 0 51 #define APP_MODE_SRTCM_COLOR_BLIND 1 52 #define APP_MODE_SRTCM_COLOR_AWARE 2 53 #define APP_MODE_TRTCM_COLOR_BLIND 3 54 #define APP_MODE_TRTCM_COLOR_AWARE 4 55 56 #define APP_MODE APP_MODE_SRTCM_COLOR_BLIND 57 58 59 #include "main.h" 60 61 62 #define APP_PKT_FLOW_POS 33 63 #define APP_PKT_COLOR_POS 5 64 65 66 #if APP_PKT_FLOW_POS > 64 || APP_PKT_COLOR_POS > 64 67 #error Byte offset needs to be less than 64 68 #endif 69 70 /* 71 * Buffer pool configuration 72 * 73 ***/ 74 #define NB_MBUF 8192 75 #define MEMPOOL_CACHE_SIZE 256 76 77 static struct rte_mempool *pool = NULL; 78 79 /* 80 * NIC configuration 81 * 82 ***/ 83 static struct rte_eth_conf port_conf = { 84 .rxmode = { 85 .mq_mode = ETH_MQ_RX_RSS, 86 .max_rx_pkt_len = ETHER_MAX_LEN, 87 .split_hdr_size = 0, 88 .header_split = 0, 89 .hw_ip_checksum = 1, 90 .hw_vlan_filter = 0, 91 .jumbo_frame = 0, 92 .hw_strip_crc = 0, 93 }, 94 .rx_adv_conf = { 95 .rss_conf = { 96 .rss_key = NULL, 97 .rss_hf = ETH_RSS_IP, 98 }, 99 }, 100 .txmode = { 101 .mq_mode = ETH_DCB_NONE, 102 }, 103 }; 104 105 #define NIC_RX_QUEUE_DESC 128 106 #define NIC_TX_QUEUE_DESC 512 107 108 #define NIC_RX_QUEUE 0 109 #define NIC_TX_QUEUE 0 110 111 /* 112 * Packet RX/TX 113 * 114 ***/ 115 #define PKT_RX_BURST_MAX 32 116 #define PKT_TX_BURST_MAX 32 117 #define TIME_TX_DRAIN 200000ULL 118 119 static uint8_t port_rx; 120 static uint8_t port_tx; 121 static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX]; 122 struct rte_eth_dev_tx_buffer *tx_buffer; 123 124 struct rte_meter_srtcm_params app_srtcm_params[] = { 125 {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048}, 126 }; 127 128 struct rte_meter_trtcm_params app_trtcm_params[] = { 129 {.cir = 1000000 * 46, .pir = 1500000 * 46, .cbs = 2048, .pbs = 2048}, 130 }; 131 132 #define APP_FLOWS_MAX 256 133 134 FLOW_METER app_flows[APP_FLOWS_MAX]; 135 136 static void 137 app_configure_flow_table(void) 138 { 139 uint32_t i, j; 140 141 for (i = 0, j = 0; i < APP_FLOWS_MAX; i ++, j = (j + 1) % RTE_DIM(PARAMS)){ 142 FUNC_CONFIG(&app_flows[i], &PARAMS[j]); 143 } 144 } 145 146 static inline void 147 app_set_pkt_color(uint8_t *pkt_data, enum policer_action color) 148 { 149 pkt_data[APP_PKT_COLOR_POS] = (uint8_t)color; 150 } 151 152 static inline int 153 app_pkt_handle(struct rte_mbuf *pkt, uint64_t time) 154 { 155 uint8_t input_color, output_color; 156 uint8_t *pkt_data = rte_pktmbuf_mtod(pkt, uint8_t *); 157 uint32_t pkt_len = rte_pktmbuf_pkt_len(pkt) - sizeof(struct ether_hdr); 158 uint8_t flow_id = (uint8_t)(pkt_data[APP_PKT_FLOW_POS] & (APP_FLOWS_MAX - 1)); 159 input_color = pkt_data[APP_PKT_COLOR_POS]; 160 enum policer_action action; 161 162 /* color input is not used for blind modes */ 163 output_color = (uint8_t) FUNC_METER(&app_flows[flow_id], time, pkt_len, 164 (enum rte_meter_color) input_color); 165 166 /* Apply policing and set the output color */ 167 action = policer_table[input_color][output_color]; 168 app_set_pkt_color(pkt_data, action); 169 170 return action; 171 } 172 173 174 static __attribute__((noreturn)) int 175 main_loop(__attribute__((unused)) void *dummy) 176 { 177 uint64_t current_time, last_time = rte_rdtsc(); 178 uint32_t lcore_id = rte_lcore_id(); 179 180 printf("Core %u: port RX = %d, port TX = %d\n", lcore_id, port_rx, port_tx); 181 182 while (1) { 183 uint64_t time_diff; 184 int i, nb_rx; 185 186 /* Mechanism to avoid stale packets in the output buffer */ 187 current_time = rte_rdtsc(); 188 time_diff = current_time - last_time; 189 if (unlikely(time_diff > TIME_TX_DRAIN)) { 190 /* Flush tx buffer */ 191 rte_eth_tx_buffer_flush(port_tx, NIC_TX_QUEUE, tx_buffer); 192 last_time = current_time; 193 } 194 195 /* Read packet burst from NIC RX */ 196 nb_rx = rte_eth_rx_burst(port_rx, NIC_RX_QUEUE, pkts_rx, PKT_RX_BURST_MAX); 197 198 /* Handle packets */ 199 for (i = 0; i < nb_rx; i ++) { 200 struct rte_mbuf *pkt = pkts_rx[i]; 201 202 /* Handle current packet */ 203 if (app_pkt_handle(pkt, current_time) == DROP) 204 rte_pktmbuf_free(pkt); 205 else 206 rte_eth_tx_buffer(port_tx, NIC_TX_QUEUE, tx_buffer, pkt); 207 } 208 } 209 } 210 211 static void 212 print_usage(const char *prgname) 213 { 214 printf ("%s [EAL options] -- -p PORTMASK\n" 215 " -p PORTMASK: hexadecimal bitmask of ports to configure\n", 216 prgname); 217 } 218 219 static int 220 parse_portmask(const char *portmask) 221 { 222 char *end = NULL; 223 unsigned long pm; 224 225 /* parse hexadecimal string */ 226 pm = strtoul(portmask, &end, 16); 227 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 228 return -1; 229 230 if (pm == 0) 231 return -1; 232 233 return pm; 234 } 235 236 /* Parse the argument given in the command line of the application */ 237 static int 238 parse_args(int argc, char **argv) 239 { 240 int opt; 241 char **argvopt; 242 int option_index; 243 char *prgname = argv[0]; 244 static struct option lgopts[] = { 245 {NULL, 0, 0, 0} 246 }; 247 uint64_t port_mask, i, mask; 248 249 argvopt = argv; 250 251 while ((opt = getopt_long(argc, argvopt, "p:", lgopts, &option_index)) != EOF) { 252 switch (opt) { 253 case 'p': 254 port_mask = parse_portmask(optarg); 255 if (port_mask == 0) { 256 printf("invalid port mask (null port mask)\n"); 257 print_usage(prgname); 258 return -1; 259 } 260 261 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){ 262 if (mask & port_mask){ 263 port_rx = i; 264 port_mask &= ~ mask; 265 break; 266 } 267 } 268 269 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){ 270 if (mask & port_mask){ 271 port_tx = i; 272 port_mask &= ~ mask; 273 break; 274 } 275 } 276 277 if (port_mask != 0) { 278 printf("invalid port mask (more than 2 ports)\n"); 279 print_usage(prgname); 280 return -1; 281 } 282 break; 283 284 default: 285 print_usage(prgname); 286 return -1; 287 } 288 } 289 290 if (optind <= 1) { 291 print_usage(prgname); 292 return -1; 293 } 294 295 argv[optind-1] = prgname; 296 297 optind = 0; /* reset getopt lib */ 298 return 0; 299 } 300 301 int 302 main(int argc, char **argv) 303 { 304 uint32_t lcore_id; 305 int ret; 306 307 /* EAL init */ 308 ret = rte_eal_init(argc, argv); 309 if (ret < 0) 310 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 311 argc -= ret; 312 argv += ret; 313 if (rte_lcore_count() != 1) { 314 rte_exit(EXIT_FAILURE, "This application does not accept more than one core. " 315 "Please adjust the \"-c COREMASK\" parameter accordingly.\n"); 316 } 317 318 /* Application non-EAL arguments parse */ 319 ret = parse_args(argc, argv); 320 if (ret < 0) 321 rte_exit(EXIT_FAILURE, "Invalid input arguments\n"); 322 323 /* Buffer pool init */ 324 pool = rte_pktmbuf_pool_create("pool", NB_MBUF, MEMPOOL_CACHE_SIZE, 325 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id()); 326 if (pool == NULL) 327 rte_exit(EXIT_FAILURE, "Buffer pool creation error\n"); 328 329 /* NIC init */ 330 ret = rte_eth_dev_configure(port_rx, 1, 1, &port_conf); 331 if (ret < 0) 332 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret); 333 334 ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, 335 rte_eth_dev_socket_id(port_rx), 336 NULL, pool); 337 if (ret < 0) 338 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret); 339 340 ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, 341 rte_eth_dev_socket_id(port_rx), 342 NULL); 343 if (ret < 0) 344 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret); 345 346 ret = rte_eth_dev_configure(port_tx, 1, 1, &port_conf); 347 if (ret < 0) 348 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret); 349 350 ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, 351 rte_eth_dev_socket_id(port_tx), 352 NULL, pool); 353 if (ret < 0) 354 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret); 355 356 ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, 357 rte_eth_dev_socket_id(port_tx), 358 NULL); 359 if (ret < 0) 360 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret); 361 362 tx_buffer = rte_zmalloc_socket("tx_buffer", 363 RTE_ETH_TX_BUFFER_SIZE(PKT_TX_BURST_MAX), 0, 364 rte_eth_dev_socket_id(port_tx)); 365 if (tx_buffer == NULL) 366 rte_exit(EXIT_FAILURE, "Port %d TX buffer allocation error\n", 367 port_tx); 368 369 rte_eth_tx_buffer_init(tx_buffer, PKT_TX_BURST_MAX); 370 371 ret = rte_eth_dev_start(port_rx); 372 if (ret < 0) 373 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret); 374 375 ret = rte_eth_dev_start(port_tx); 376 if (ret < 0) 377 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_tx, ret); 378 379 rte_eth_promiscuous_enable(port_rx); 380 381 rte_eth_promiscuous_enable(port_tx); 382 383 /* App configuration */ 384 app_configure_flow_table(); 385 386 /* Launch per-lcore init on every lcore */ 387 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 388 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 389 if (rte_eal_wait_lcore(lcore_id) < 0) 390 return -1; 391 } 392 393 return 0; 394 } 395