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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/types.h>
40 #include <sys/queue.h>
45 #include <rte_common.h>
46 #include <rte_byteorder.h>
48 #include <rte_memory.h>
49 #include <rte_memcpy.h>
50 #include <rte_memzone.h>
52 #include <rte_launch.h>
53 #include <rte_atomic.h>
54 #include <rte_cycles.h>
55 #include <rte_prefetch.h>
56 #include <rte_lcore.h>
57 #include <rte_per_lcore.h>
58 #include <rte_branch_prediction.h>
59 #include <rte_interrupts.h>
61 #include <rte_random.h>
62 #include <rte_debug.h>
63 #include <rte_ether.h>
64 #include <rte_ethdev.h>
66 #include <rte_mempool.h>
74 #ifndef APP_LCORE_IO_FLUSH
75 #define APP_LCORE_IO_FLUSH 1000000
78 #ifndef APP_LCORE_WORKER_FLUSH
79 #define APP_LCORE_WORKER_FLUSH 1000000
83 #define APP_STATS 1000000
86 #define APP_IO_RX_DROP_ALL_PACKETS 0
87 #define APP_WORKER_DROP_ALL_PACKETS 0
88 #define APP_IO_TX_DROP_ALL_PACKETS 0
90 #ifndef APP_IO_RX_PREFETCH_ENABLE
91 #define APP_IO_RX_PREFETCH_ENABLE 1
94 #ifndef APP_WORKER_PREFETCH_ENABLE
95 #define APP_WORKER_PREFETCH_ENABLE 1
98 #ifndef APP_IO_TX_PREFETCH_ENABLE
99 #define APP_IO_TX_PREFETCH_ENABLE 1
102 #if APP_IO_RX_PREFETCH_ENABLE
103 #define APP_IO_RX_PREFETCH0(p) rte_prefetch0(p)
104 #define APP_IO_RX_PREFETCH1(p) rte_prefetch1(p)
106 #define APP_IO_RX_PREFETCH0(p)
107 #define APP_IO_RX_PREFETCH1(p)
110 #if APP_WORKER_PREFETCH_ENABLE
111 #define APP_WORKER_PREFETCH0(p) rte_prefetch0(p)
112 #define APP_WORKER_PREFETCH1(p) rte_prefetch1(p)
114 #define APP_WORKER_PREFETCH0(p)
115 #define APP_WORKER_PREFETCH1(p)
118 #if APP_IO_TX_PREFETCH_ENABLE
119 #define APP_IO_TX_PREFETCH0(p) rte_prefetch0(p)
120 #define APP_IO_TX_PREFETCH1(p) rte_prefetch1(p)
122 #define APP_IO_TX_PREFETCH0(p)
123 #define APP_IO_TX_PREFETCH1(p)
127 app_lcore_io_rx_buffer_to_send (
128 struct app_lcore_params_io *lp,
130 struct rte_mbuf *mbuf,
136 pos = lp->rx.mbuf_out[worker].n_mbufs;
137 lp->rx.mbuf_out[worker].array[pos ++] = mbuf;
138 if (likely(pos < bsz)) {
139 lp->rx.mbuf_out[worker].n_mbufs = pos;
143 ret = rte_ring_sp_enqueue_bulk(
144 lp->rx.rings[worker],
145 (void **) lp->rx.mbuf_out[worker].array,
149 if (unlikely(ret == 0)) {
151 for (k = 0; k < bsz; k ++) {
152 struct rte_mbuf *m = lp->rx.mbuf_out[worker].array[k];
157 lp->rx.mbuf_out[worker].n_mbufs = 0;
158 lp->rx.mbuf_out_flush[worker] = 0;
161 lp->rx.rings_iters[worker] ++;
162 if (likely(ret == 0)) {
163 lp->rx.rings_count[worker] ++;
165 if (unlikely(lp->rx.rings_iters[worker] == APP_STATS)) {
166 unsigned lcore = rte_lcore_id();
168 printf("\tI/O RX %u out (worker %u): enq success rate = %.2f\n",
171 ((double) lp->rx.rings_count[worker]) / ((double) lp->rx.rings_iters[worker]));
172 lp->rx.rings_iters[worker] = 0;
173 lp->rx.rings_count[worker] = 0;
180 struct app_lcore_params_io *lp,
186 struct rte_mbuf *mbuf_1_0, *mbuf_1_1, *mbuf_2_0, *mbuf_2_1;
187 uint8_t *data_1_0, *data_1_1 = NULL;
190 for (i = 0; i < lp->rx.n_nic_queues; i ++) {
191 uint16_t port = lp->rx.nic_queues[i].port;
192 uint8_t queue = lp->rx.nic_queues[i].queue;
195 n_mbufs = rte_eth_rx_burst(
198 lp->rx.mbuf_in.array,
201 if (unlikely(n_mbufs == 0)) {
206 lp->rx.nic_queues_iters[i] ++;
207 lp->rx.nic_queues_count[i] += n_mbufs;
208 if (unlikely(lp->rx.nic_queues_iters[i] == APP_STATS)) {
209 struct rte_eth_stats stats;
210 unsigned lcore = rte_lcore_id();
212 rte_eth_stats_get(port, &stats);
214 printf("I/O RX %u in (NIC port %u): NIC drop ratio = %.2f avg burst size = %.2f\n",
217 (double) stats.imissed / (double) (stats.imissed + stats.ipackets),
218 ((double) lp->rx.nic_queues_count[i]) / ((double) lp->rx.nic_queues_iters[i]));
219 lp->rx.nic_queues_iters[i] = 0;
220 lp->rx.nic_queues_count[i] = 0;
224 #if APP_IO_RX_DROP_ALL_PACKETS
225 for (j = 0; j < n_mbufs; j ++) {
226 struct rte_mbuf *pkt = lp->rx.mbuf_in.array[j];
227 rte_pktmbuf_free(pkt);
233 mbuf_1_0 = lp->rx.mbuf_in.array[0];
234 mbuf_1_1 = lp->rx.mbuf_in.array[1];
235 data_1_0 = rte_pktmbuf_mtod(mbuf_1_0, uint8_t *);
236 if (likely(n_mbufs > 1)) {
237 data_1_1 = rte_pktmbuf_mtod(mbuf_1_1, uint8_t *);
240 mbuf_2_0 = lp->rx.mbuf_in.array[2];
241 mbuf_2_1 = lp->rx.mbuf_in.array[3];
242 APP_IO_RX_PREFETCH0(mbuf_2_0);
243 APP_IO_RX_PREFETCH0(mbuf_2_1);
245 for (j = 0; j + 3 < n_mbufs; j += 2) {
246 struct rte_mbuf *mbuf_0_0, *mbuf_0_1;
247 uint8_t *data_0_0, *data_0_1;
248 uint32_t worker_0, worker_1;
257 data_1_0 = rte_pktmbuf_mtod(mbuf_2_0, uint8_t *);
258 data_1_1 = rte_pktmbuf_mtod(mbuf_2_1, uint8_t *);
259 APP_IO_RX_PREFETCH0(data_1_0);
260 APP_IO_RX_PREFETCH0(data_1_1);
262 mbuf_2_0 = lp->rx.mbuf_in.array[j+4];
263 mbuf_2_1 = lp->rx.mbuf_in.array[j+5];
264 APP_IO_RX_PREFETCH0(mbuf_2_0);
265 APP_IO_RX_PREFETCH0(mbuf_2_1);
267 worker_0 = data_0_0[pos_lb] & (n_workers - 1);
268 worker_1 = data_0_1[pos_lb] & (n_workers - 1);
270 app_lcore_io_rx_buffer_to_send(lp, worker_0, mbuf_0_0, bsz_wr);
271 app_lcore_io_rx_buffer_to_send(lp, worker_1, mbuf_0_1, bsz_wr);
274 /* Handle the last 1, 2 (when n_mbufs is even) or 3 (when n_mbufs is odd) packets */
275 for ( ; j < n_mbufs; j += 1) {
276 struct rte_mbuf *mbuf;
285 data = rte_pktmbuf_mtod(mbuf, uint8_t *);
287 APP_IO_RX_PREFETCH0(mbuf_1_0);
289 worker = data[pos_lb] & (n_workers - 1);
291 app_lcore_io_rx_buffer_to_send(lp, worker, mbuf, bsz_wr);
297 app_lcore_io_rx_flush(struct app_lcore_params_io *lp, uint32_t n_workers)
301 for (worker = 0; worker < n_workers; worker ++) {
304 if (likely((lp->rx.mbuf_out_flush[worker] == 0) ||
305 (lp->rx.mbuf_out[worker].n_mbufs == 0))) {
306 lp->rx.mbuf_out_flush[worker] = 1;
310 ret = rte_ring_sp_enqueue_bulk(
311 lp->rx.rings[worker],
312 (void **) lp->rx.mbuf_out[worker].array,
313 lp->rx.mbuf_out[worker].n_mbufs,
316 if (unlikely(ret == 0)) {
318 for (k = 0; k < lp->rx.mbuf_out[worker].n_mbufs; k ++) {
319 struct rte_mbuf *pkt_to_free = lp->rx.mbuf_out[worker].array[k];
320 rte_pktmbuf_free(pkt_to_free);
324 lp->rx.mbuf_out[worker].n_mbufs = 0;
325 lp->rx.mbuf_out_flush[worker] = 1;
331 struct app_lcore_params_io *lp,
338 for (worker = 0; worker < n_workers; worker ++) {
341 for (i = 0; i < lp->tx.n_nic_ports; i ++) {
342 uint16_t port = lp->tx.nic_ports[i];
343 struct rte_ring *ring = lp->tx.rings[port][worker];
344 uint32_t n_mbufs, n_pkts;
347 n_mbufs = lp->tx.mbuf_out[port].n_mbufs;
348 ret = rte_ring_sc_dequeue_bulk(
350 (void **) &lp->tx.mbuf_out[port].array[n_mbufs],
354 if (unlikely(ret == 0))
359 #if APP_IO_TX_DROP_ALL_PACKETS
362 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[0]);
363 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[1]);
365 for (j = 0; j < n_mbufs; j ++) {
366 if (likely(j < n_mbufs - 2)) {
367 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[j + 2]);
370 rte_pktmbuf_free(lp->tx.mbuf_out[port].array[j]);
373 lp->tx.mbuf_out[port].n_mbufs = 0;
379 if (unlikely(n_mbufs < bsz_wr)) {
380 lp->tx.mbuf_out[port].n_mbufs = n_mbufs;
384 n_pkts = rte_eth_tx_burst(
387 lp->tx.mbuf_out[port].array,
391 lp->tx.nic_ports_iters[port] ++;
392 lp->tx.nic_ports_count[port] += n_pkts;
393 if (unlikely(lp->tx.nic_ports_iters[port] == APP_STATS)) {
394 unsigned lcore = rte_lcore_id();
396 printf("\t\t\tI/O TX %u out (port %u): avg burst size = %.2f\n",
399 ((double) lp->tx.nic_ports_count[port]) / ((double) lp->tx.nic_ports_iters[port]));
400 lp->tx.nic_ports_iters[port] = 0;
401 lp->tx.nic_ports_count[port] = 0;
405 if (unlikely(n_pkts < n_mbufs)) {
407 for (k = n_pkts; k < n_mbufs; k ++) {
408 struct rte_mbuf *pkt_to_free = lp->tx.mbuf_out[port].array[k];
409 rte_pktmbuf_free(pkt_to_free);
412 lp->tx.mbuf_out[port].n_mbufs = 0;
413 lp->tx.mbuf_out_flush[port] = 0;
419 app_lcore_io_tx_flush(struct app_lcore_params_io *lp)
424 for (i = 0; i < lp->tx.n_nic_ports; i++) {
427 port = lp->tx.nic_ports[i];
428 if (likely((lp->tx.mbuf_out_flush[port] == 0) ||
429 (lp->tx.mbuf_out[port].n_mbufs == 0))) {
430 lp->tx.mbuf_out_flush[port] = 1;
434 n_pkts = rte_eth_tx_burst(
437 lp->tx.mbuf_out[port].array,
438 (uint16_t) lp->tx.mbuf_out[port].n_mbufs);
440 if (unlikely(n_pkts < lp->tx.mbuf_out[port].n_mbufs)) {
442 for (k = n_pkts; k < lp->tx.mbuf_out[port].n_mbufs; k ++) {
443 struct rte_mbuf *pkt_to_free = lp->tx.mbuf_out[port].array[k];
444 rte_pktmbuf_free(pkt_to_free);
448 lp->tx.mbuf_out[port].n_mbufs = 0;
449 lp->tx.mbuf_out_flush[port] = 1;
454 app_lcore_main_loop_io(void)
456 uint32_t lcore = rte_lcore_id();
457 struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
458 uint32_t n_workers = app_get_lcores_worker();
461 uint32_t bsz_rx_rd = app.burst_size_io_rx_read;
462 uint32_t bsz_rx_wr = app.burst_size_io_rx_write;
463 uint32_t bsz_tx_rd = app.burst_size_io_tx_read;
464 uint32_t bsz_tx_wr = app.burst_size_io_tx_write;
466 uint8_t pos_lb = app.pos_lb;
469 if (APP_LCORE_IO_FLUSH && (unlikely(i == APP_LCORE_IO_FLUSH))) {
470 if (likely(lp->rx.n_nic_queues > 0)) {
471 app_lcore_io_rx_flush(lp, n_workers);
474 if (likely(lp->tx.n_nic_ports > 0)) {
475 app_lcore_io_tx_flush(lp);
481 if (likely(lp->rx.n_nic_queues > 0)) {
482 app_lcore_io_rx(lp, n_workers, bsz_rx_rd, bsz_rx_wr, pos_lb);
485 if (likely(lp->tx.n_nic_ports > 0)) {
486 app_lcore_io_tx(lp, n_workers, bsz_tx_rd, bsz_tx_wr);
495 struct app_lcore_params_worker *lp,
501 for (i = 0; i < lp->n_rings_in; i ++) {
502 struct rte_ring *ring_in = lp->rings_in[i];
506 ret = rte_ring_sc_dequeue_bulk(
508 (void **) lp->mbuf_in.array,
512 if (unlikely(ret == 0))
515 #if APP_WORKER_DROP_ALL_PACKETS
516 for (j = 0; j < bsz_rd; j ++) {
517 struct rte_mbuf *pkt = lp->mbuf_in.array[j];
518 rte_pktmbuf_free(pkt);
524 APP_WORKER_PREFETCH1(rte_pktmbuf_mtod(lp->mbuf_in.array[0], unsigned char *));
525 APP_WORKER_PREFETCH0(lp->mbuf_in.array[1]);
527 for (j = 0; j < bsz_rd; j ++) {
528 struct rte_mbuf *pkt;
529 struct ipv4_hdr *ipv4_hdr;
530 uint32_t ipv4_dst, pos;
533 if (likely(j < bsz_rd - 1)) {
534 APP_WORKER_PREFETCH1(rte_pktmbuf_mtod(lp->mbuf_in.array[j+1], unsigned char *));
536 if (likely(j < bsz_rd - 2)) {
537 APP_WORKER_PREFETCH0(lp->mbuf_in.array[j+2]);
540 pkt = lp->mbuf_in.array[j];
541 ipv4_hdr = rte_pktmbuf_mtod_offset(pkt,
543 sizeof(struct ether_hdr));
544 ipv4_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
546 if (unlikely(rte_lpm_lookup(lp->lpm_table, ipv4_dst, &port) != 0)) {
550 pos = lp->mbuf_out[port].n_mbufs;
552 lp->mbuf_out[port].array[pos ++] = pkt;
553 if (likely(pos < bsz_wr)) {
554 lp->mbuf_out[port].n_mbufs = pos;
558 ret = rte_ring_sp_enqueue_bulk(
560 (void **) lp->mbuf_out[port].array,
565 lp->rings_out_iters[port] ++;
567 lp->rings_out_count[port] += 1;
569 if (lp->rings_out_iters[port] == APP_STATS){
570 printf("\t\tWorker %u out (NIC port %u): enq success rate = %.2f\n",
571 (unsigned) lp->worker_id,
573 ((double) lp->rings_out_count[port]) / ((double) lp->rings_out_iters[port]));
574 lp->rings_out_iters[port] = 0;
575 lp->rings_out_count[port] = 0;
579 if (unlikely(ret == 0)) {
581 for (k = 0; k < bsz_wr; k ++) {
582 struct rte_mbuf *pkt_to_free = lp->mbuf_out[port].array[k];
583 rte_pktmbuf_free(pkt_to_free);
587 lp->mbuf_out[port].n_mbufs = 0;
588 lp->mbuf_out_flush[port] = 0;
594 app_lcore_worker_flush(struct app_lcore_params_worker *lp)
598 for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
601 if (unlikely(lp->rings_out[port] == NULL)) {
605 if (likely((lp->mbuf_out_flush[port] == 0) ||
606 (lp->mbuf_out[port].n_mbufs == 0))) {
607 lp->mbuf_out_flush[port] = 1;
611 ret = rte_ring_sp_enqueue_bulk(
613 (void **) lp->mbuf_out[port].array,
614 lp->mbuf_out[port].n_mbufs,
617 if (unlikely(ret == 0)) {
619 for (k = 0; k < lp->mbuf_out[port].n_mbufs; k ++) {
620 struct rte_mbuf *pkt_to_free = lp->mbuf_out[port].array[k];
621 rte_pktmbuf_free(pkt_to_free);
625 lp->mbuf_out[port].n_mbufs = 0;
626 lp->mbuf_out_flush[port] = 1;
631 app_lcore_main_loop_worker(void) {
632 uint32_t lcore = rte_lcore_id();
633 struct app_lcore_params_worker *lp = &app.lcore_params[lcore].worker;
636 uint32_t bsz_rd = app.burst_size_worker_read;
637 uint32_t bsz_wr = app.burst_size_worker_write;
640 if (APP_LCORE_WORKER_FLUSH && (unlikely(i == APP_LCORE_WORKER_FLUSH))) {
641 app_lcore_worker_flush(lp);
645 app_lcore_worker(lp, bsz_rd, bsz_wr);
652 app_lcore_main_loop(__attribute__((unused)) void *arg)
654 struct app_lcore_params *lp;
657 lcore = rte_lcore_id();
658 lp = &app.lcore_params[lcore];
660 if (lp->type == e_APP_LCORE_IO) {
661 printf("Logical core %u (I/O) main loop.\n", lcore);
662 app_lcore_main_loop_io();
665 if (lp->type == e_APP_LCORE_WORKER) {
666 printf("Logical core %u (worker %u) main loop.\n",
668 (unsigned) lp->worker.worker_id);
669 app_lcore_main_loop_worker();