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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>
51 #include <rte_launch.h>
52 #include <rte_atomic.h>
53 #include <rte_cycles.h>
54 #include <rte_prefetch.h>
55 #include <rte_lcore.h>
56 #include <rte_per_lcore.h>
57 #include <rte_branch_prediction.h>
58 #include <rte_interrupts.h>
60 #include <rte_random.h>
61 #include <rte_debug.h>
62 #include <rte_ether.h>
63 #include <rte_ethdev.h>
65 #include <rte_mempool.h>
73 #ifndef APP_LCORE_IO_FLUSH
74 #define APP_LCORE_IO_FLUSH 1000000
77 #ifndef APP_LCORE_WORKER_FLUSH
78 #define APP_LCORE_WORKER_FLUSH 1000000
82 #define APP_STATS 1000000
85 #define APP_IO_RX_DROP_ALL_PACKETS 0
86 #define APP_WORKER_DROP_ALL_PACKETS 0
87 #define APP_IO_TX_DROP_ALL_PACKETS 0
89 #ifndef APP_IO_RX_PREFETCH_ENABLE
90 #define APP_IO_RX_PREFETCH_ENABLE 1
93 #ifndef APP_WORKER_PREFETCH_ENABLE
94 #define APP_WORKER_PREFETCH_ENABLE 1
97 #ifndef APP_IO_TX_PREFETCH_ENABLE
98 #define APP_IO_TX_PREFETCH_ENABLE 1
101 #if APP_IO_RX_PREFETCH_ENABLE
102 #define APP_IO_RX_PREFETCH0(p) rte_prefetch0(p)
103 #define APP_IO_RX_PREFETCH1(p) rte_prefetch1(p)
105 #define APP_IO_RX_PREFETCH0(p)
106 #define APP_IO_RX_PREFETCH1(p)
109 #if APP_WORKER_PREFETCH_ENABLE
110 #define APP_WORKER_PREFETCH0(p) rte_prefetch0(p)
111 #define APP_WORKER_PREFETCH1(p) rte_prefetch1(p)
113 #define APP_WORKER_PREFETCH0(p)
114 #define APP_WORKER_PREFETCH1(p)
117 #if APP_IO_TX_PREFETCH_ENABLE
118 #define APP_IO_TX_PREFETCH0(p) rte_prefetch0(p)
119 #define APP_IO_TX_PREFETCH1(p) rte_prefetch1(p)
121 #define APP_IO_TX_PREFETCH0(p)
122 #define APP_IO_TX_PREFETCH1(p)
126 app_lcore_io_rx_buffer_to_send (
127 struct app_lcore_params_io *lp,
129 struct rte_mbuf *mbuf,
135 pos = lp->rx.mbuf_out[worker].n_mbufs;
136 lp->rx.mbuf_out[worker].array[pos ++] = mbuf;
137 if (likely(pos < bsz)) {
138 lp->rx.mbuf_out[worker].n_mbufs = pos;
142 ret = rte_ring_sp_enqueue_bulk(
143 lp->rx.rings[worker],
144 (void **) lp->rx.mbuf_out[worker].array,
148 if (unlikely(ret == 0)) {
150 for (k = 0; k < bsz; k ++) {
151 struct rte_mbuf *m = lp->rx.mbuf_out[worker].array[k];
156 lp->rx.mbuf_out[worker].n_mbufs = 0;
157 lp->rx.mbuf_out_flush[worker] = 0;
160 lp->rx.rings_iters[worker] ++;
161 if (likely(ret == 0)) {
162 lp->rx.rings_count[worker] ++;
164 if (unlikely(lp->rx.rings_iters[worker] == APP_STATS)) {
165 unsigned lcore = rte_lcore_id();
167 printf("\tI/O RX %u out (worker %u): enq success rate = %.2f\n",
170 ((double) lp->rx.rings_count[worker]) / ((double) lp->rx.rings_iters[worker]));
171 lp->rx.rings_iters[worker] = 0;
172 lp->rx.rings_count[worker] = 0;
179 struct app_lcore_params_io *lp,
185 struct rte_mbuf *mbuf_1_0, *mbuf_1_1, *mbuf_2_0, *mbuf_2_1;
186 uint8_t *data_1_0, *data_1_1 = NULL;
189 for (i = 0; i < lp->rx.n_nic_queues; i ++) {
190 uint16_t port = lp->rx.nic_queues[i].port;
191 uint8_t queue = lp->rx.nic_queues[i].queue;
194 n_mbufs = rte_eth_rx_burst(
197 lp->rx.mbuf_in.array,
200 if (unlikely(n_mbufs == 0)) {
205 lp->rx.nic_queues_iters[i] ++;
206 lp->rx.nic_queues_count[i] += n_mbufs;
207 if (unlikely(lp->rx.nic_queues_iters[i] == APP_STATS)) {
208 struct rte_eth_stats stats;
209 unsigned lcore = rte_lcore_id();
211 rte_eth_stats_get(port, &stats);
213 printf("I/O RX %u in (NIC port %u): NIC drop ratio = %.2f avg burst size = %.2f\n",
216 (double) stats.imissed / (double) (stats.imissed + stats.ipackets),
217 ((double) lp->rx.nic_queues_count[i]) / ((double) lp->rx.nic_queues_iters[i]));
218 lp->rx.nic_queues_iters[i] = 0;
219 lp->rx.nic_queues_count[i] = 0;
223 #if APP_IO_RX_DROP_ALL_PACKETS
224 for (j = 0; j < n_mbufs; j ++) {
225 struct rte_mbuf *pkt = lp->rx.mbuf_in.array[j];
226 rte_pktmbuf_free(pkt);
232 mbuf_1_0 = lp->rx.mbuf_in.array[0];
233 mbuf_1_1 = lp->rx.mbuf_in.array[1];
234 data_1_0 = rte_pktmbuf_mtod(mbuf_1_0, uint8_t *);
235 if (likely(n_mbufs > 1)) {
236 data_1_1 = rte_pktmbuf_mtod(mbuf_1_1, uint8_t *);
239 mbuf_2_0 = lp->rx.mbuf_in.array[2];
240 mbuf_2_1 = lp->rx.mbuf_in.array[3];
241 APP_IO_RX_PREFETCH0(mbuf_2_0);
242 APP_IO_RX_PREFETCH0(mbuf_2_1);
244 for (j = 0; j + 3 < n_mbufs; j += 2) {
245 struct rte_mbuf *mbuf_0_0, *mbuf_0_1;
246 uint8_t *data_0_0, *data_0_1;
247 uint32_t worker_0, worker_1;
256 data_1_0 = rte_pktmbuf_mtod(mbuf_2_0, uint8_t *);
257 data_1_1 = rte_pktmbuf_mtod(mbuf_2_1, uint8_t *);
258 APP_IO_RX_PREFETCH0(data_1_0);
259 APP_IO_RX_PREFETCH0(data_1_1);
261 mbuf_2_0 = lp->rx.mbuf_in.array[j+4];
262 mbuf_2_1 = lp->rx.mbuf_in.array[j+5];
263 APP_IO_RX_PREFETCH0(mbuf_2_0);
264 APP_IO_RX_PREFETCH0(mbuf_2_1);
266 worker_0 = data_0_0[pos_lb] & (n_workers - 1);
267 worker_1 = data_0_1[pos_lb] & (n_workers - 1);
269 app_lcore_io_rx_buffer_to_send(lp, worker_0, mbuf_0_0, bsz_wr);
270 app_lcore_io_rx_buffer_to_send(lp, worker_1, mbuf_0_1, bsz_wr);
273 /* Handle the last 1, 2 (when n_mbufs is even) or 3 (when n_mbufs is odd) packets */
274 for ( ; j < n_mbufs; j += 1) {
275 struct rte_mbuf *mbuf;
284 data = rte_pktmbuf_mtod(mbuf, uint8_t *);
286 APP_IO_RX_PREFETCH0(mbuf_1_0);
288 worker = data[pos_lb] & (n_workers - 1);
290 app_lcore_io_rx_buffer_to_send(lp, worker, mbuf, bsz_wr);
296 app_lcore_io_rx_flush(struct app_lcore_params_io *lp, uint32_t n_workers)
300 for (worker = 0; worker < n_workers; worker ++) {
303 if (likely((lp->rx.mbuf_out_flush[worker] == 0) ||
304 (lp->rx.mbuf_out[worker].n_mbufs == 0))) {
305 lp->rx.mbuf_out_flush[worker] = 1;
309 ret = rte_ring_sp_enqueue_bulk(
310 lp->rx.rings[worker],
311 (void **) lp->rx.mbuf_out[worker].array,
312 lp->rx.mbuf_out[worker].n_mbufs,
315 if (unlikely(ret == 0)) {
317 for (k = 0; k < lp->rx.mbuf_out[worker].n_mbufs; k ++) {
318 struct rte_mbuf *pkt_to_free = lp->rx.mbuf_out[worker].array[k];
319 rte_pktmbuf_free(pkt_to_free);
323 lp->rx.mbuf_out[worker].n_mbufs = 0;
324 lp->rx.mbuf_out_flush[worker] = 1;
330 struct app_lcore_params_io *lp,
337 for (worker = 0; worker < n_workers; worker ++) {
340 for (i = 0; i < lp->tx.n_nic_ports; i ++) {
341 uint16_t port = lp->tx.nic_ports[i];
342 struct rte_ring *ring = lp->tx.rings[port][worker];
343 uint32_t n_mbufs, n_pkts;
346 n_mbufs = lp->tx.mbuf_out[port].n_mbufs;
347 ret = rte_ring_sc_dequeue_bulk(
349 (void **) &lp->tx.mbuf_out[port].array[n_mbufs],
353 if (unlikely(ret == 0))
358 #if APP_IO_TX_DROP_ALL_PACKETS
361 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[0]);
362 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[1]);
364 for (j = 0; j < n_mbufs; j ++) {
365 if (likely(j < n_mbufs - 2)) {
366 APP_IO_TX_PREFETCH0(lp->tx.mbuf_out[port].array[j + 2]);
369 rte_pktmbuf_free(lp->tx.mbuf_out[port].array[j]);
372 lp->tx.mbuf_out[port].n_mbufs = 0;
378 if (unlikely(n_mbufs < bsz_wr)) {
379 lp->tx.mbuf_out[port].n_mbufs = n_mbufs;
383 n_pkts = rte_eth_tx_burst(
386 lp->tx.mbuf_out[port].array,
390 lp->tx.nic_ports_iters[port] ++;
391 lp->tx.nic_ports_count[port] += n_pkts;
392 if (unlikely(lp->tx.nic_ports_iters[port] == APP_STATS)) {
393 unsigned lcore = rte_lcore_id();
395 printf("\t\t\tI/O TX %u out (port %u): avg burst size = %.2f\n",
398 ((double) lp->tx.nic_ports_count[port]) / ((double) lp->tx.nic_ports_iters[port]));
399 lp->tx.nic_ports_iters[port] = 0;
400 lp->tx.nic_ports_count[port] = 0;
404 if (unlikely(n_pkts < n_mbufs)) {
406 for (k = n_pkts; k < n_mbufs; k ++) {
407 struct rte_mbuf *pkt_to_free = lp->tx.mbuf_out[port].array[k];
408 rte_pktmbuf_free(pkt_to_free);
411 lp->tx.mbuf_out[port].n_mbufs = 0;
412 lp->tx.mbuf_out_flush[port] = 0;
418 app_lcore_io_tx_flush(struct app_lcore_params_io *lp)
423 for (i = 0; i < lp->tx.n_nic_ports; i++) {
426 port = lp->tx.nic_ports[i];
427 if (likely((lp->tx.mbuf_out_flush[port] == 0) ||
428 (lp->tx.mbuf_out[port].n_mbufs == 0))) {
429 lp->tx.mbuf_out_flush[port] = 1;
433 n_pkts = rte_eth_tx_burst(
436 lp->tx.mbuf_out[port].array,
437 (uint16_t) lp->tx.mbuf_out[port].n_mbufs);
439 if (unlikely(n_pkts < lp->tx.mbuf_out[port].n_mbufs)) {
441 for (k = n_pkts; k < lp->tx.mbuf_out[port].n_mbufs; k ++) {
442 struct rte_mbuf *pkt_to_free = lp->tx.mbuf_out[port].array[k];
443 rte_pktmbuf_free(pkt_to_free);
447 lp->tx.mbuf_out[port].n_mbufs = 0;
448 lp->tx.mbuf_out_flush[port] = 1;
453 app_lcore_main_loop_io(void)
455 uint32_t lcore = rte_lcore_id();
456 struct app_lcore_params_io *lp = &app.lcore_params[lcore].io;
457 uint32_t n_workers = app_get_lcores_worker();
460 uint32_t bsz_rx_rd = app.burst_size_io_rx_read;
461 uint32_t bsz_rx_wr = app.burst_size_io_rx_write;
462 uint32_t bsz_tx_rd = app.burst_size_io_tx_read;
463 uint32_t bsz_tx_wr = app.burst_size_io_tx_write;
465 uint8_t pos_lb = app.pos_lb;
468 if (APP_LCORE_IO_FLUSH && (unlikely(i == APP_LCORE_IO_FLUSH))) {
469 if (likely(lp->rx.n_nic_queues > 0)) {
470 app_lcore_io_rx_flush(lp, n_workers);
473 if (likely(lp->tx.n_nic_ports > 0)) {
474 app_lcore_io_tx_flush(lp);
480 if (likely(lp->rx.n_nic_queues > 0)) {
481 app_lcore_io_rx(lp, n_workers, bsz_rx_rd, bsz_rx_wr, pos_lb);
484 if (likely(lp->tx.n_nic_ports > 0)) {
485 app_lcore_io_tx(lp, n_workers, bsz_tx_rd, bsz_tx_wr);
494 struct app_lcore_params_worker *lp,
500 for (i = 0; i < lp->n_rings_in; i ++) {
501 struct rte_ring *ring_in = lp->rings_in[i];
505 ret = rte_ring_sc_dequeue_bulk(
507 (void **) lp->mbuf_in.array,
511 if (unlikely(ret == 0))
514 #if APP_WORKER_DROP_ALL_PACKETS
515 for (j = 0; j < bsz_rd; j ++) {
516 struct rte_mbuf *pkt = lp->mbuf_in.array[j];
517 rte_pktmbuf_free(pkt);
523 APP_WORKER_PREFETCH1(rte_pktmbuf_mtod(lp->mbuf_in.array[0], unsigned char *));
524 APP_WORKER_PREFETCH0(lp->mbuf_in.array[1]);
526 for (j = 0; j < bsz_rd; j ++) {
527 struct rte_mbuf *pkt;
528 struct ipv4_hdr *ipv4_hdr;
529 uint32_t ipv4_dst, pos;
532 if (likely(j < bsz_rd - 1)) {
533 APP_WORKER_PREFETCH1(rte_pktmbuf_mtod(lp->mbuf_in.array[j+1], unsigned char *));
535 if (likely(j < bsz_rd - 2)) {
536 APP_WORKER_PREFETCH0(lp->mbuf_in.array[j+2]);
539 pkt = lp->mbuf_in.array[j];
540 ipv4_hdr = rte_pktmbuf_mtod_offset(pkt,
542 sizeof(struct ether_hdr));
543 ipv4_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
545 if (unlikely(rte_lpm_lookup(lp->lpm_table, ipv4_dst, &port) != 0)) {
549 pos = lp->mbuf_out[port].n_mbufs;
551 lp->mbuf_out[port].array[pos ++] = pkt;
552 if (likely(pos < bsz_wr)) {
553 lp->mbuf_out[port].n_mbufs = pos;
557 ret = rte_ring_sp_enqueue_bulk(
559 (void **) lp->mbuf_out[port].array,
564 lp->rings_out_iters[port] ++;
566 lp->rings_out_count[port] += 1;
568 if (lp->rings_out_iters[port] == APP_STATS){
569 printf("\t\tWorker %u out (NIC port %u): enq success rate = %.2f\n",
570 (unsigned) lp->worker_id,
572 ((double) lp->rings_out_count[port]) / ((double) lp->rings_out_iters[port]));
573 lp->rings_out_iters[port] = 0;
574 lp->rings_out_count[port] = 0;
578 if (unlikely(ret == 0)) {
580 for (k = 0; k < bsz_wr; k ++) {
581 struct rte_mbuf *pkt_to_free = lp->mbuf_out[port].array[k];
582 rte_pktmbuf_free(pkt_to_free);
586 lp->mbuf_out[port].n_mbufs = 0;
587 lp->mbuf_out_flush[port] = 0;
593 app_lcore_worker_flush(struct app_lcore_params_worker *lp)
597 for (port = 0; port < APP_MAX_NIC_PORTS; port ++) {
600 if (unlikely(lp->rings_out[port] == NULL)) {
604 if (likely((lp->mbuf_out_flush[port] == 0) ||
605 (lp->mbuf_out[port].n_mbufs == 0))) {
606 lp->mbuf_out_flush[port] = 1;
610 ret = rte_ring_sp_enqueue_bulk(
612 (void **) lp->mbuf_out[port].array,
613 lp->mbuf_out[port].n_mbufs,
616 if (unlikely(ret == 0)) {
618 for (k = 0; k < lp->mbuf_out[port].n_mbufs; k ++) {
619 struct rte_mbuf *pkt_to_free = lp->mbuf_out[port].array[k];
620 rte_pktmbuf_free(pkt_to_free);
624 lp->mbuf_out[port].n_mbufs = 0;
625 lp->mbuf_out_flush[port] = 1;
630 app_lcore_main_loop_worker(void) {
631 uint32_t lcore = rte_lcore_id();
632 struct app_lcore_params_worker *lp = &app.lcore_params[lcore].worker;
635 uint32_t bsz_rd = app.burst_size_worker_read;
636 uint32_t bsz_wr = app.burst_size_worker_write;
639 if (APP_LCORE_WORKER_FLUSH && (unlikely(i == APP_LCORE_WORKER_FLUSH))) {
640 app_lcore_worker_flush(lp);
644 app_lcore_worker(lp, bsz_rd, bsz_wr);
651 app_lcore_main_loop(__attribute__((unused)) void *arg)
653 struct app_lcore_params *lp;
656 lcore = rte_lcore_id();
657 lp = &app.lcore_params[lcore];
659 if (lp->type == e_APP_LCORE_IO) {
660 printf("Logical core %u (I/O) main loop.\n", lcore);
661 app_lcore_main_loop_io();
664 if (lp->type == e_APP_LCORE_WORKER) {
665 printf("Logical core %u (worker %u) main loop.\n",
667 (unsigned) lp->worker.worker_id);
668 app_lcore_main_loop_worker();