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38 #include <rte_common.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
74 #define MBUF_SIZE (2048 + sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
76 #define MEMPOOL_CACHE_SIZE 256
78 static struct rte_mempool *pool = NULL;
84 static struct rte_eth_conf port_conf = {
86 .max_rx_pkt_len = ETHER_MAX_LEN,
97 .rss_hf = ETH_RSS_IPV4 | ETH_RSS_IPV6,
101 .mq_mode = ETH_DCB_NONE,
105 static const struct rte_eth_rxconf rx_conf = {
107 .pthresh = 8, /* RX prefetch threshold reg */
108 .hthresh = 8, /* RX host threshold reg */
109 .wthresh = 4, /* RX write-back threshold reg */
111 .rx_free_thresh = 32,
114 static const struct rte_eth_txconf tx_conf = {
116 .pthresh = 36, /* TX prefetch threshold reg */
117 .hthresh = 0, /* TX host threshold reg */
118 .wthresh = 0, /* TX write-back threshold reg */
125 #define NIC_RX_QUEUE_DESC 128
126 #define NIC_TX_QUEUE_DESC 512
128 #define NIC_RX_QUEUE 0
129 #define NIC_TX_QUEUE 0
135 #define PKT_RX_BURST_MAX 32
136 #define PKT_TX_BURST_MAX 32
137 #define TIME_TX_DRAIN 200000ULL
139 static uint8_t port_rx;
140 static uint8_t port_tx;
141 static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX];
142 static struct rte_mbuf *pkts_tx[PKT_TX_BURST_MAX];
143 static uint16_t pkts_tx_len = 0;
146 struct rte_meter_srtcm_params app_srtcm_params[] = {
147 {.cir = 1000000 * 46, .cbs = 2048, .ebs = 2048},
150 struct rte_meter_trtcm_params app_trtcm_params[] = {
151 {.cir = 1000000 * 46, .pir = 1500000 * 46, .cbs = 2048, .pbs = 2048},
154 #define DIM(a) (sizeof (a) / sizeof ((a)[0]))
155 #define APP_FLOWS_MAX 256
157 FLOW_METER app_flows[APP_FLOWS_MAX];
160 app_configure_flow_table(void)
164 for (i = 0, j = 0; i < APP_FLOWS_MAX; i ++, j = (j + 1) % DIM(PARAMS)){
165 FUNC_CONFIG(&app_flows[i], &PARAMS[j]);
170 app_pkt_handle(struct rte_mbuf *pkt, uint64_t time)
174 uint8_t *pkt_data = rte_pktmbuf_mtod(pkt, uint8_t *);
175 uint32_t pkt_len = rte_pktmbuf_pkt_len(pkt) - sizeof(struct ether_hdr);
176 uint8_t flow_id = (uint8_t)(pkt_data[APP_PKT_FLOW_POS] & (APP_FLOWS_MAX - 1));
177 color = pkt_data[APP_PKT_COLOR_POS];
179 /* color input is not used for blind modes */
180 color = (uint8_t) FUNC_METER(&app_flows[flow_id], time, pkt_len,
181 (enum rte_meter_color) color);
182 pkt_data[APP_PKT_COLOR_POS] = color;
186 static __attribute__((noreturn)) int
187 main_loop(__attribute__((unused)) void *dummy)
189 uint64_t current_time, last_time = rte_rdtsc();
190 uint32_t lcore_id = rte_lcore_id();
192 printf("Core %u: port RX = %d, port TX = %d\n", lcore_id, port_rx, port_tx);
198 /* Mechanism to avoid stale packets in the output buffer */
199 current_time = rte_rdtsc();
200 time_diff = current_time - last_time;
201 if (unlikely(time_diff > TIME_TX_DRAIN)) {
204 if (pkts_tx_len == 0) {
205 last_time = current_time;
210 /* Write packet burst to NIC TX */
211 ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, pkts_tx_len);
213 /* Free buffers for any packets not written successfully */
214 if (unlikely(ret < pkts_tx_len)) {
215 for ( ; ret < pkts_tx_len; ret ++) {
216 rte_pktmbuf_free(pkts_tx[ret]);
220 /* Empty the output buffer */
223 last_time = current_time;
226 /* Read packet burst from NIC RX */
227 nb_rx = rte_eth_rx_burst(port_rx, NIC_RX_QUEUE, pkts_rx, PKT_RX_BURST_MAX);
230 for (i = 0; i < nb_rx; i ++) {
231 struct rte_mbuf *pkt = pkts_rx[i];
233 /* Handle current packet*/
234 app_pkt_handle(pkt, current_time);
236 /* Write current packet in the output buffer */
237 pkts_tx[pkts_tx_len] = pkt;
240 /* Write packets from output buffer to NIC TX when full burst is available */
241 if (unlikely(pkts_tx_len == PKT_TX_BURST_MAX)) {
242 /* Write packet burst to NIC TX */
243 int ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, PKT_TX_BURST_MAX);
245 /* Free buffers for any packets not written successfully */
246 if (unlikely(ret < PKT_TX_BURST_MAX)) {
247 for ( ; ret < PKT_TX_BURST_MAX; ret ++) {
248 rte_pktmbuf_free(pkts_tx[ret]);
252 /* Empty the output buffer */
260 print_usage(const char *prgname)
262 printf ("%s [EAL options] -- -p PORTMASK\n"
263 " -p PORTMASK: hexadecimal bitmask of ports to configure\n",
268 parse_portmask(const char *portmask)
273 /* parse hexadecimal string */
274 pm = strtoul(portmask, &end, 16);
275 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
284 /* Parse the argument given in the command line of the application */
286 parse_args(int argc, char **argv)
291 char *prgname = argv[0];
292 static struct option lgopts[] = {
295 uint64_t port_mask, i, mask;
299 while ((opt = getopt_long(argc, argvopt, "p:", lgopts, &option_index)) != EOF) {
302 port_mask = parse_portmask(optarg);
303 if (port_mask == 0) {
304 printf("invalid port mask (null port mask)\n");
305 print_usage(prgname);
309 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
310 if (mask & port_mask){
317 for (i = 0, mask = 1; i < 64; i ++, mask <<= 1){
318 if (mask & port_mask){
325 if (port_mask != 0) {
326 printf("invalid port mask (more than 2 ports)\n");
327 print_usage(prgname);
333 print_usage(prgname);
339 print_usage(prgname);
343 argv[optind-1] = prgname;
345 optind = 0; /* reset getopt lib */
350 MAIN(int argc, char **argv)
356 ret = rte_eal_init(argc, argv);
358 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
361 if (rte_lcore_count() != 1) {
362 rte_exit(EXIT_FAILURE, "This application does not accept more than one core. "
363 "Please adjust the \"-c COREMASK\" parameter accordingly.\n");
366 /* Application non-EAL arguments parse */
367 ret = parse_args(argc, argv);
369 rte_exit(EXIT_FAILURE, "Invalid input arguments\n");
371 /* Buffer pool init */
372 pool = rte_mempool_create("pool", NB_MBUF, MBUF_SIZE, MEMPOOL_CACHE_SIZE,
373 sizeof(struct rte_pktmbuf_pool_private), rte_pktmbuf_pool_init, NULL,
374 rte_pktmbuf_init, NULL, rte_socket_id(), 0);
376 rte_exit(EXIT_FAILURE, "Buffer pool creation error\n");
379 if (rte_pmd_init_all() < 0)
380 rte_exit(EXIT_FAILURE, "PMD init error\n");
382 if (rte_eal_pci_probe() < 0)
383 rte_exit(EXIT_FAILURE, "PCI probe error\n");
386 ret = rte_eth_dev_configure(port_rx, 1, 1, &port_conf);
388 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_rx, ret);
390 ret = rte_eth_rx_queue_setup(port_rx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, rte_eth_dev_socket_id(port_rx), &rx_conf, pool);
392 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_rx, ret);
394 ret = rte_eth_tx_queue_setup(port_rx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, rte_eth_dev_socket_id(port_rx), &tx_conf);
396 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_rx, ret);
398 ret = rte_eth_dev_configure(port_tx, 1, 1, &port_conf);
400 rte_exit(EXIT_FAILURE, "Port %d configuration error (%d)\n", port_tx, ret);
402 ret = rte_eth_rx_queue_setup(port_tx, NIC_RX_QUEUE, NIC_RX_QUEUE_DESC, rte_eth_dev_socket_id(port_tx), &rx_conf, pool);
404 rte_exit(EXIT_FAILURE, "Port %d RX queue setup error (%d)\n", port_tx, ret);
406 ret = rte_eth_tx_queue_setup(port_tx, NIC_TX_QUEUE, NIC_TX_QUEUE_DESC, rte_eth_dev_socket_id(port_tx), &tx_conf);
408 rte_exit(EXIT_FAILURE, "Port %d TX queue setup error (%d)\n", port_tx, ret);
410 ret = rte_eth_dev_start(port_rx);
412 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_rx, ret);
414 ret = rte_eth_dev_start(port_tx);
416 rte_exit(EXIT_FAILURE, "Port %d start error (%d)\n", port_tx, ret);
418 rte_eth_promiscuous_enable(port_rx);
420 rte_eth_promiscuous_enable(port_tx);
422 /* App configuration */
423 app_configure_flow_table();
425 /* Launch per-lcore init on every lcore */
426 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER);
427 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
428 if (rte_eal_wait_lcore(lcore_id) < 0)