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37 #include <rte_common.h>
39 #include <rte_malloc.h>
40 #include <rte_mempool.h>
41 #include <rte_ethdev.h>
42 #include <rte_cycles.h>
44 #include <rte_meter.h>
47 * Traffic metering configuration
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
56 #define APP_MODE APP_MODE_SRTCM_COLOR_BLIND
62 #define APP_PKT_FLOW_POS 33
63 #define APP_PKT_COLOR_POS 5
66 #if APP_PKT_FLOW_POS > 64 || APP_PKT_COLOR_POS > 64
67 #error Byte offset needs to be less than 64
71 * Buffer pool configuration
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 struct rte_eth_dev_tx_buffer *tx_buffer;
124 struct rte_meter_srtcm_params app_srtcm_params[] = {
125 {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048},
128 struct rte_meter_trtcm_params app_trtcm_params[] = {
129 {.cir = 1000000 * 46, .pir = 1500000 * 46, .cbs = 2048, .pbs = 2048},
132 #define APP_FLOWS_MAX 256
134 FLOW_METER app_flows[APP_FLOWS_MAX];
137 app_configure_flow_table(void)
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]);
147 app_set_pkt_color(uint8_t *pkt_data, enum policer_action color)
149 pkt_data[APP_PKT_COLOR_POS] = (uint8_t)color;
153 app_pkt_handle(struct rte_mbuf *pkt, uint64_t time)
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;
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);
166 /* Apply policing and set the output color */
167 action = policer_table[input_color][output_color];
168 app_set_pkt_color(pkt_data, action);
174 static __attribute__((noreturn)) int
175 main_loop(__attribute__((unused)) void *dummy)
177 uint64_t current_time, last_time = rte_rdtsc();
178 uint32_t lcore_id = rte_lcore_id();
180 printf("Core %u: port RX = %d, port TX = %d\n", lcore_id, port_rx, port_tx);
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;
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);
199 for (i = 0; i < nb_rx; i ++) {
200 struct rte_mbuf *pkt = pkts_rx[i];
202 /* Handle current packet */
203 if (app_pkt_handle(pkt, current_time) == DROP)
204 rte_pktmbuf_free(pkt);
206 rte_eth_tx_buffer(port_tx, NIC_TX_QUEUE, tx_buffer, pkt);
212 print_usage(const char *prgname)
214 printf ("%s [EAL options] -- -p PORTMASK\n"
215 " -p PORTMASK: hexadecimal bitmask of ports to configure\n",
220 parse_portmask(const char *portmask)
225 /* parse hexadecimal string */
226 pm = strtoul(portmask, &end, 16);
227 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
236 /* Parse the argument given in the command line of the application */
238 parse_args(int argc, char **argv)
243 char *prgname = argv[0];
244 static struct option lgopts[] = {
247 uint64_t port_mask, i, mask;
251 while ((opt = getopt_long(argc, argvopt, "p:", lgopts, &option_index)) != EOF) {
254 port_mask = parse_portmask(optarg);
255 if (port_mask == 0) {
256 printf("invalid port mask (null port mask)\n");
257 print_usage(prgname);
261 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
262 if (mask & port_mask){
269 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
270 if (mask & port_mask){
277 if (port_mask != 0) {
278 printf("invalid port mask (more than 2 ports)\n");
279 print_usage(prgname);
285 print_usage(prgname);
291 print_usage(prgname);
295 argv[optind-1] = prgname;
297 optind = 0; /* reset getopt lib */
302 main(int argc, char **argv)
308 ret = rte_eal_init(argc, argv);
310 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
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");
318 /* Application non-EAL arguments parse */
319 ret = parse_args(argc, argv);
321 rte_exit(EXIT_FAILURE, "Invalid input arguments\n");
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());
327 rte_exit(EXIT_FAILURE, "Buffer pool creation error\n");
330 ret = rte_eth_dev_configure(port_rx, 1, 1, &port_conf);
332 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret);
334 ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
335 rte_eth_dev_socket_id(port_rx),
338 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret);
340 ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
341 rte_eth_dev_socket_id(port_rx),
344 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
346 ret = rte_eth_dev_configure(port_tx, 1, 1, &port_conf);
348 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret);
350 ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC,
351 rte_eth_dev_socket_id(port_tx),
354 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret);
356 ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC,
357 rte_eth_dev_socket_id(port_tx),
360 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret);
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",
369 rte_eth_tx_buffer_init(tx_buffer, PKT_TX_BURST_MAX);
371 ret = rte_eth_dev_start(port_rx);
373 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret);
375 ret = rte_eth_dev_start(port_tx);
377 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_tx, ret);
379 rte_eth_promiscuous_enable(port_rx);
381 rte_eth_promiscuous_enable(port_tx);
383 /* App configuration */
384 app_configure_flow_table();
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)