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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
73 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
75 #define MEMPOOL_CACHE_SIZE 256
77 static struct rte_mempool *pool = NULL;
83 static struct rte_eth_conf port_conf = {
85 .mq_mode = ETH_MQ_RX_RSS,
86 .max_rx_pkt_len = ETHER_MAX_LEN,
101 .mq_mode = ETH_DCB_NONE,
105 #define NIC_RX_QUEUE_DESC 128
106 #define NIC_TX_QUEUE_DESC 512
108 #define NIC_RX_QUEUE 0
109 #define NIC_TX_QUEUE 0
115 #define PKT_RX_BURST_MAX 32
116 #define PKT_TX_BURST_MAX 32
117 #define TIME_TX_DRAIN 200000ULL
119 static uint8_t port_rx;
120 static uint8_t port_tx;
121 static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX];
122 static struct rte_mbuf *pkts_tx[PKT_TX_BURST_MAX];
123 static uint16_t pkts_tx_len = 0;
126 struct rte_meter_srtcm_params app_srtcm_params[] = {
127 {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048},
130 struct rte_meter_trtcm_params app_trtcm_params[] = {
131 {.cir = 1000000 * 46, .pir = 1500000 * 46, .cbs = 2048, .pbs = 2048},
134 #define APP_FLOWS_MAX 256
136 FLOW_METER app_flows[APP_FLOWS_MAX];
139 app_configure_flow_table(void)
143 for (i = 0, j = 0; i < APP_FLOWS_MAX; i ++, j = (j + 1) % RTE_DIM(PARAMS)){
144 FUNC_CONFIG(&app_flows[i], &PARAMS[j]);
149 app_set_pkt_color(uint8_t *pkt_data, enum policer_action color)
151 pkt_data[APP_PKT_COLOR_POS] = (uint8_t)color;
155 app_pkt_handle(struct rte_mbuf *pkt, uint64_t time)
157 uint8_t input_color, output_color;
158 uint8_t *pkt_data = rte_pktmbuf_mtod(pkt, uint8_t *);
159 uint32_t pkt_len = rte_pktmbuf_pkt_len(pkt) - sizeof(struct ether_hdr);
160 uint8_t flow_id = (uint8_t)(pkt_data[APP_PKT_FLOW_POS] & (APP_FLOWS_MAX - 1));
161 input_color = pkt_data[APP_PKT_COLOR_POS];
162 enum policer_action action;
164 /* color input is not used for blind modes */
165 output_color = (uint8_t) FUNC_METER(&app_flows[flow_id], time, pkt_len,
166 (enum rte_meter_color) input_color);
168 /* Apply policing and set the output color */
169 action = policer_table[input_color][output_color];
170 app_set_pkt_color(pkt_data, action);
176 static __attribute__((noreturn)) int
177 main_loop(__attribute__((unused)) void *dummy)
179 uint64_t current_time, last_time = rte_rdtsc();
180 uint32_t lcore_id = rte_lcore_id();
182 printf("Core %u: port RX = %d, port TX = %d\n", lcore_id, port_rx, port_tx);
188 /* Mechanism to avoid stale packets in the output buffer */
189 current_time = rte_rdtsc();
190 time_diff = current_time - last_time;
191 if (unlikely(time_diff > TIME_TX_DRAIN)) {
194 if (pkts_tx_len == 0) {
195 last_time = current_time;
200 /* Write packet burst to NIC TX */
201 ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, pkts_tx_len);
203 /* Free buffers for any packets not written successfully */
204 if (unlikely(ret < pkts_tx_len)) {
205 for ( ; ret < pkts_tx_len; ret ++) {
206 rte_pktmbuf_free(pkts_tx[ret]);
210 /* Empty the output buffer */
213 last_time = current_time;
216 /* Read packet burst from NIC RX */
217 nb_rx = rte_eth_rx_burst(port_rx, NIC_RX_QUEUE, pkts_rx, PKT_RX_BURST_MAX);
220 for (i = 0; i < nb_rx; i ++) {
221 struct rte_mbuf *pkt = pkts_rx[i];
223 /* Handle current packet */
224 if (app_pkt_handle(pkt, current_time) == DROP)
225 rte_pktmbuf_free(pkt);
227 pkts_tx[pkts_tx_len] = pkt;
231 /* Write packets from output buffer to NIC TX when full burst is available */
232 if (unlikely(pkts_tx_len == PKT_TX_BURST_MAX)) {
233 /* Write packet burst to NIC TX */
234 int ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, PKT_TX_BURST_MAX);
236 /* Free buffers for any packets not written successfully */
237 if (unlikely(ret < PKT_TX_BURST_MAX)) {
238 for ( ; ret < PKT_TX_BURST_MAX; ret ++) {
239 rte_pktmbuf_free(pkts_tx[ret]);
243 /* Empty the output buffer */
251 print_usage(const char *prgname)
253 printf ("%s [EAL options] -- -p PORTMASK\n"
254 " -p PORTMASK: hexadecimal bitmask of ports to configure\n",
259 parse_portmask(const char *portmask)
264 /* parse hexadecimal string */
265 pm = strtoul(portmask, &end, 16);
266 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
275 /* Parse the argument given in the command line of the application */
277 parse_args(int argc, char **argv)
282 char *prgname = argv[0];
283 static struct option lgopts[] = {
286 uint64_t port_mask, i, mask;
290 while ((opt = getopt_long(argc, argvopt, "p:", lgopts, &option_index)) != EOF) {
293 port_mask = parse_portmask(optarg);
294 if (port_mask == 0) {
295 printf("invalid port mask (null port mask)\n");
296 print_usage(prgname);
300 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
301 if (mask & port_mask){
308 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
309 if (mask & port_mask){
316 if (port_mask != 0) {
317 printf("invalid port mask (more than 2 ports)\n");
318 print_usage(prgname);
324 print_usage(prgname);
330 print_usage(prgname);
334 argv[optind-1] = prgname;
336 optind = 0; /* reset getopt lib */
341 main(int argc, char **argv)
347 ret = rte_eal_init(argc, argv);
349 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
352 if (rte_lcore_count() != 1) {
353 rte_exit(EXIT_FAILURE, "This application does not accept more than one core. "
354 "Please adjust the \"-c COREMASK\" parameter accordingly.\n");
357 /* Application non-EAL arguments parse */
358 ret = parse_args(argc, argv);
360 rte_exit(EXIT_FAILURE, "Invalid input arguments\n");
362 /* Buffer pool init */
363 pool = rte_mempool_create("pool", NB_MBUF, MBUF_SIZE, MEMPOOL_CACHE_SIZE,
364 sizeof(struct rte_pktmbuf_pool_private), rte_pktmbuf_pool_init, NULL,
365 rte_pktmbuf_init, NULL, rte_socket_id(), 0);
367 rte_exit(EXIT_FAILURE, "Buffer pool creation error\n");
370 ret = rte_eth_dev_configure(port_rx, 1, 1, &port_conf);
372 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret);
374 ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
375 rte_eth_dev_socket_id(port_rx),
378 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret);
380 ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
381 rte_eth_dev_socket_id(port_rx),
384 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
386 ret = rte_eth_dev_configure(port_tx, 1, 1, &port_conf);
388 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret);
390 ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
391 rte_eth_dev_socket_id(port_tx),
394 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret);
396 ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
397 rte_eth_dev_socket_id(port_tx),
400 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret);
402 ret = rte_eth_dev_start(port_rx);
404 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret);
406 ret = rte_eth_dev_start(port_tx);
408 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_tx, ret);
410 rte_eth_promiscuous_enable(port_rx);
412 rte_eth_promiscuous_enable(port_tx);
414 /* App configuration */
415 app_configure_flow_table();
417 /* Launch per-lcore init on every lcore */
418 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
419 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
420 if (rte_eal_wait_lcore(lcore_id) < 0)