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37 #include <rte_common.h>
39 #include <rte_mempool.h>
40 #include <rte_ethdev.h>
41 #include <rte_cycles.h>
43 #include <rte_meter.h>
46 * Traffic metering configuration
49 #define APP_MODE_FWD 0
50 #define APP_MODE_SRTCM_COLOR_BLIND 1
51 #define APP_MODE_SRTCM_COLOR_AWARE 2
52 #define APP_MODE_TRTCM_COLOR_BLIND 3
53 #define APP_MODE_TRTCM_COLOR_AWARE 4
55 #define APP_MODE APP_MODE_SRTCM_COLOR_BLIND
61 #define APP_PKT_FLOW_POS 33
62 #define APP_PKT_COLOR_POS 5
65 #if APP_PKT_FLOW_POS > 64 || APP_PKT_COLOR_POS > 64
66 #error Byte offset needs to be less than 64
70 * Buffer pool configuration
74 #define MEMPOOL_CACHE_SIZE 256
76 static struct rte_mempool *pool = NULL;
82 static struct rte_eth_conf port_conf = {
84 .mq_mode = ETH_MQ_RX_RSS,
85 .max_rx_pkt_len = ETHER_MAX_LEN,
100 .mq_mode = ETH_DCB_NONE,
104 #define NIC_RX_QUEUE_DESC 128
105 #define NIC_TX_QUEUE_DESC 512
107 #define NIC_RX_QUEUE 0
108 #define NIC_TX_QUEUE 0
114 #define PKT_RX_BURST_MAX 32
115 #define PKT_TX_BURST_MAX 32
116 #define TIME_TX_DRAIN 200000ULL
118 static uint8_t port_rx;
119 static uint8_t port_tx;
120 static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX];
121 static struct rte_mbuf *pkts_tx[PKT_TX_BURST_MAX];
122 static uint16_t pkts_tx_len = 0;
125 struct rte_meter_srtcm_params app_srtcm_params[] = {
126 {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048},
129 struct rte_meter_trtcm_params app_trtcm_params[] = {
130 {.cir = 1000000 * 46, .pir = 1500000 * 46, .cbs = 2048, .pbs = 2048},
133 #define APP_FLOWS_MAX 256
135 FLOW_METER app_flows[APP_FLOWS_MAX];
138 app_configure_flow_table(void)
142 for (i = 0, j = 0; i < APP_FLOWS_MAX; i ++, j = (j + 1) % RTE_DIM(PARAMS)){
143 FUNC_CONFIG(&app_flows[i], &PARAMS[j]);
148 app_set_pkt_color(uint8_t *pkt_data, enum policer_action color)
150 pkt_data[APP_PKT_COLOR_POS] = (uint8_t)color;
154 app_pkt_handle(struct rte_mbuf *pkt, uint64_t time)
156 uint8_t input_color, output_color;
157 uint8_t *pkt_data = rte_pktmbuf_mtod(pkt, uint8_t *);
158 uint32_t pkt_len = rte_pktmbuf_pkt_len(pkt) - sizeof(struct ether_hdr);
159 uint8_t flow_id = (uint8_t)(pkt_data[APP_PKT_FLOW_POS] & (APP_FLOWS_MAX - 1));
160 input_color = pkt_data[APP_PKT_COLOR_POS];
161 enum policer_action action;
163 /* color input is not used for blind modes */
164 output_color = (uint8_t) FUNC_METER(&app_flows[flow_id], time, pkt_len,
165 (enum rte_meter_color) input_color);
167 /* Apply policing and set the output color */
168 action = policer_table[input_color][output_color];
169 app_set_pkt_color(pkt_data, action);
175 static __attribute__((noreturn)) int
176 main_loop(__attribute__((unused)) void *dummy)
178 uint64_t current_time, last_time = rte_rdtsc();
179 uint32_t lcore_id = rte_lcore_id();
181 printf("Core %u: port RX = %d, port TX = %d\n", lcore_id, port_rx, port_tx);
187 /* Mechanism to avoid stale packets in the output buffer */
188 current_time = rte_rdtsc();
189 time_diff = current_time - last_time;
190 if (unlikely(time_diff > TIME_TX_DRAIN)) {
193 if (pkts_tx_len == 0) {
194 last_time = current_time;
199 /* Write packet burst to NIC TX */
200 ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, pkts_tx_len);
202 /* Free buffers for any packets not written successfully */
203 if (unlikely(ret < pkts_tx_len)) {
204 for ( ; ret < pkts_tx_len; ret ++) {
205 rte_pktmbuf_free(pkts_tx[ret]);
209 /* Empty the output buffer */
212 last_time = current_time;
215 /* Read packet burst from NIC RX */
216 nb_rx = rte_eth_rx_burst(port_rx, NIC_RX_QUEUE, pkts_rx, PKT_RX_BURST_MAX);
219 for (i = 0; i < nb_rx; i ++) {
220 struct rte_mbuf *pkt = pkts_rx[i];
222 /* Handle current packet */
223 if (app_pkt_handle(pkt, current_time) == DROP)
224 rte_pktmbuf_free(pkt);
226 pkts_tx[pkts_tx_len] = pkt;
230 /* Write packets from output buffer to NIC TX when full burst is available */
231 if (unlikely(pkts_tx_len == PKT_TX_BURST_MAX)) {
232 /* Write packet burst to NIC TX */
233 int ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, PKT_TX_BURST_MAX);
235 /* Free buffers for any packets not written successfully */
236 if (unlikely(ret < PKT_TX_BURST_MAX)) {
237 for ( ; ret < PKT_TX_BURST_MAX; ret ++) {
238 rte_pktmbuf_free(pkts_tx[ret]);
242 /* Empty the output buffer */
250 print_usage(const char *prgname)
252 printf ("%s [EAL options] -- -p PORTMASK\n"
253 " -p PORTMASK: hexadecimal bitmask of ports to configure\n",
258 parse_portmask(const char *portmask)
263 /* parse hexadecimal string */
264 pm = strtoul(portmask, &end, 16);
265 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
274 /* Parse the argument given in the command line of the application */
276 parse_args(int argc, char **argv)
281 char *prgname = argv[0];
282 static struct option lgopts[] = {
285 uint64_t port_mask, i, mask;
289 while ((opt = getopt_long(argc, argvopt, "p:", lgopts, &option_index)) != EOF) {
292 port_mask = parse_portmask(optarg);
293 if (port_mask == 0) {
294 printf("invalid port mask (null port mask)\n");
295 print_usage(prgname);
299 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
300 if (mask & port_mask){
307 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
308 if (mask & port_mask){
315 if (port_mask != 0) {
316 printf("invalid port mask (more than 2 ports)\n");
317 print_usage(prgname);
323 print_usage(prgname);
329 print_usage(prgname);
333 argv[optind-1] = prgname;
335 optind = 0; /* reset getopt lib */
340 main(int argc, char **argv)
346 ret = rte_eal_init(argc, argv);
348 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
351 if (rte_lcore_count() != 1) {
352 rte_exit(EXIT_FAILURE, "This application does not accept more than one core. "
353 "Please adjust the \"-c COREMASK\" parameter accordingly.\n");
356 /* Application non-EAL arguments parse */
357 ret = parse_args(argc, argv);
359 rte_exit(EXIT_FAILURE, "Invalid input arguments\n");
361 /* Buffer pool init */
362 pool = rte_pktmbuf_pool_create("pool", NB_MBUF, MEMPOOL_CACHE_SIZE,
363 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
365 rte_exit(EXIT_FAILURE, "Buffer pool creation error\n");
368 ret = rte_eth_dev_configure(port_rx, 1, 1, &port_conf);
370 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret);
372 ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
373 rte_eth_dev_socket_id(port_rx),
376 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret);
378 ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
379 rte_eth_dev_socket_id(port_rx),
382 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
384 ret = rte_eth_dev_configure(port_tx, 1, 1, &port_conf);
386 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret);
388 ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
389 rte_eth_dev_socket_id(port_tx),
392 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret);
394 ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
395 rte_eth_dev_socket_id(port_tx),
398 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret);
400 ret = rte_eth_dev_start(port_rx);
402 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret);
404 ret = rte_eth_dev_start(port_tx);
406 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_tx, ret);
408 rte_eth_promiscuous_enable(port_rx);
410 rte_eth_promiscuous_enable(port_tx);
412 /* App configuration */
413 app_configure_flow_table();
415 /* Launch per-lcore init on every lcore */
416 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
417 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
418 if (rte_eal_wait_lcore(lcore_id) < 0)