return m;
}
+static void
+xstats_print(void)
+{
+ const uint32_t XSTATS_MAX = 1024;
+ uint32_t i;
+ uint32_t ids[XSTATS_MAX];
+ uint64_t values[XSTATS_MAX];
+ struct rte_event_dev_xstats_name xstats_names[XSTATS_MAX];
+
+ for (i = 0; i < XSTATS_MAX; i++)
+ ids[i] = i;
+
+ /* Device names / values */
+ int ret = rte_event_dev_xstats_names_get(evdev,
+ RTE_EVENT_DEV_XSTATS_DEVICE, 0,
+ xstats_names, ids, XSTATS_MAX);
+ if (ret < 0) {
+ printf("%d: xstats names get() returned error\n",
+ __LINE__);
+ return;
+ }
+ ret = rte_event_dev_xstats_get(evdev,
+ RTE_EVENT_DEV_XSTATS_DEVICE,
+ 0, ids, values, ret);
+ if (ret > (signed int)XSTATS_MAX)
+ printf("%s %d: more xstats available than space\n",
+ __func__, __LINE__);
+ for (i = 0; (signed int)i < ret; i++) {
+ printf("%d : %s : %"PRIu64"\n",
+ i, xstats_names[i].name, values[i]);
+ }
+
+ /* Port names / values */
+ ret = rte_event_dev_xstats_names_get(evdev,
+ RTE_EVENT_DEV_XSTATS_PORT, 0,
+ xstats_names, ids, XSTATS_MAX);
+ ret = rte_event_dev_xstats_get(evdev,
+ RTE_EVENT_DEV_XSTATS_PORT, 1,
+ ids, values, ret);
+ if (ret > (signed int)XSTATS_MAX)
+ printf("%s %d: more xstats available than space\n",
+ __func__, __LINE__);
+ for (i = 0; (signed int)i < ret; i++) {
+ printf("%d : %s : %"PRIu64"\n",
+ i, xstats_names[i].name, values[i]);
+ }
+
+ /* Queue names / values */
+ ret = rte_event_dev_xstats_names_get(evdev,
+ RTE_EVENT_DEV_XSTATS_QUEUE, 0,
+ xstats_names, ids, XSTATS_MAX);
+ ret = rte_event_dev_xstats_get(evdev,
+ RTE_EVENT_DEV_XSTATS_QUEUE,
+ 1, ids, values, ret);
+ if (ret > (signed int)XSTATS_MAX)
+ printf("%s %d: more xstats available than space\n",
+ __func__, __LINE__);
+ for (i = 0; (signed int)i < ret; i++) {
+ printf("%d : %s : %"PRIu64"\n",
+ i, xstats_names[i].name, values[i]);
+ }
+}
+
/* initialization and config */
static inline int
init(struct test *t, int nb_queues, int nb_ports)
return parallel_basic(t, 0);
}
+static int
+holb(struct test *t) /* test to check we avoid basic head-of-line blocking */
+{
+ const struct rte_event new_ev = {
+ .op = RTE_EVENT_OP_NEW
+ /* all other fields zero */
+ };
+ struct rte_event ev = new_ev;
+ unsigned int rx_port = 0; /* port we get the first flow on */
+ char rx_port_used_stat[64];
+ char rx_port_free_stat[64];
+ char other_port_used_stat[64];
+
+ if (init(t, 1, 2) < 0 ||
+ create_ports(t, 2) < 0 ||
+ create_atomic_qids(t, 1) < 0) {
+ printf("%d: Error initializing device\n", __LINE__);
+ return -1;
+ }
+ int nb_links = rte_event_port_link(evdev, t->port[1], NULL, NULL, 0);
+ if (rte_event_port_link(evdev, t->port[0], NULL, NULL, 0) != 1 ||
+ nb_links != 1) {
+ printf("%d: Error links queue to ports\n", __LINE__);
+ goto err;
+ }
+ if (rte_event_dev_start(evdev) < 0) {
+ printf("%d: Error with start call\n", __LINE__);
+ goto err;
+ }
+
+ /* send one packet and see where it goes, port 0 or 1 */
+ if (rte_event_enqueue_burst(evdev, t->port[0], &ev, 1) != 1) {
+ printf("%d: Error doing first enqueue\n", __LINE__);
+ goto err;
+ }
+ rte_event_schedule(evdev);
+
+ if (rte_event_dev_xstats_by_name_get(evdev, "port_0_cq_ring_used", NULL)
+ != 1)
+ rx_port = 1;
+
+ snprintf(rx_port_used_stat, sizeof(rx_port_used_stat),
+ "port_%u_cq_ring_used", rx_port);
+ snprintf(rx_port_free_stat, sizeof(rx_port_free_stat),
+ "port_%u_cq_ring_free", rx_port);
+ snprintf(other_port_used_stat, sizeof(other_port_used_stat),
+ "port_%u_cq_ring_used", rx_port ^ 1);
+ if (rte_event_dev_xstats_by_name_get(evdev, rx_port_used_stat, NULL)
+ != 1) {
+ printf("%d: Error, first event not scheduled\n", __LINE__);
+ goto err;
+ }
+
+ /* now fill up the rx port's queue with one flow to cause HOLB */
+ do {
+ ev = new_ev;
+ if (rte_event_enqueue_burst(evdev, t->port[0], &ev, 1) != 1) {
+ printf("%d: Error with enqueue\n", __LINE__);
+ goto err;
+ }
+ rte_event_schedule(evdev);
+ } while (rte_event_dev_xstats_by_name_get(evdev,
+ rx_port_free_stat, NULL) != 0);
+
+ /* one more packet, which needs to stay in IQ - i.e. HOLB */
+ ev = new_ev;
+ if (rte_event_enqueue_burst(evdev, t->port[0], &ev, 1) != 1) {
+ printf("%d: Error with enqueue\n", __LINE__);
+ goto err;
+ }
+ rte_event_schedule(evdev);
+
+ /* check that the other port still has an empty CQ */
+ if (rte_event_dev_xstats_by_name_get(evdev, other_port_used_stat, NULL)
+ != 0) {
+ printf("%d: Error, second port CQ is not empty\n", __LINE__);
+ goto err;
+ }
+ /* check IQ now has one packet */
+ if (rte_event_dev_xstats_by_name_get(evdev, "qid_0_iq_0_used", NULL)
+ != 1) {
+ printf("%d: Error, QID does not have exactly 1 packet\n",
+ __LINE__);
+ goto err;
+ }
+
+ /* send another flow, which should pass the other IQ entry */
+ ev = new_ev;
+ ev.flow_id = 1;
+ if (rte_event_enqueue_burst(evdev, t->port[0], &ev, 1) != 1) {
+ printf("%d: Error with enqueue\n", __LINE__);
+ goto err;
+ }
+ rte_event_schedule(evdev);
+
+ if (rte_event_dev_xstats_by_name_get(evdev, other_port_used_stat, NULL)
+ != 1) {
+ printf("%d: Error, second flow did not pass out first\n",
+ __LINE__);
+ goto err;
+ }
+
+ if (rte_event_dev_xstats_by_name_get(evdev, "qid_0_iq_0_used", NULL)
+ != 1) {
+ printf("%d: Error, QID does not have exactly 1 packet\n",
+ __LINE__);
+ goto err;
+ }
+ cleanup(t);
+ return 0;
+err:
+ rte_event_dev_dump(evdev, stdout);
+ cleanup(t);
+ return -1;
+}
+
+static int
+worker_loopback_worker_fn(void *arg)
+{
+ struct test *t = arg;
+ uint8_t port = t->port[1];
+ int count = 0;
+ int enqd;
+
+ /*
+ * Takes packets from the input port and then loops them back through
+ * the Eventdev. Each packet gets looped through QIDs 0-8, 16 times
+ * so each packet goes through 8*16 = 128 times.
+ */
+ printf("%d: \tWorker function started\n", __LINE__);
+ while (count < NUM_PACKETS) {
+#define BURST_SIZE 32
+ struct rte_event ev[BURST_SIZE];
+ uint16_t i, nb_rx = rte_event_dequeue_burst(evdev, port, ev,
+ BURST_SIZE, 0);
+ if (nb_rx == 0) {
+ rte_pause();
+ continue;
+ }
+
+ for (i = 0; i < nb_rx; i++) {
+ ev[i].queue_id++;
+ if (ev[i].queue_id != 8) {
+ ev[i].op = RTE_EVENT_OP_FORWARD;
+ enqd = rte_event_enqueue_burst(evdev, port,
+ &ev[i], 1);
+ if (enqd != 1) {
+ printf("%d: Can't enqueue FWD!!\n",
+ __LINE__);
+ return -1;
+ }
+ continue;
+ }
+
+ ev[i].queue_id = 0;
+ ev[i].mbuf->udata64++;
+ if (ev[i].mbuf->udata64 != 16) {
+ ev[i].op = RTE_EVENT_OP_FORWARD;
+ enqd = rte_event_enqueue_burst(evdev, port,
+ &ev[i], 1);
+ if (enqd != 1) {
+ printf("%d: Can't enqueue FWD!!\n",
+ __LINE__);
+ return -1;
+ }
+ continue;
+ }
+ /* we have hit 16 iterations through system - drop */
+ rte_pktmbuf_free(ev[i].mbuf);
+ count++;
+ ev[i].op = RTE_EVENT_OP_RELEASE;
+ enqd = rte_event_enqueue_burst(evdev, port, &ev[i], 1);
+ if (enqd != 1) {
+ printf("%d drop enqueue failed\n", __LINE__);
+ return -1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int
+worker_loopback_producer_fn(void *arg)
+{
+ struct test *t = arg;
+ uint8_t port = t->port[0];
+ uint64_t count = 0;
+
+ printf("%d: \tProducer function started\n", __LINE__);
+ while (count < NUM_PACKETS) {
+ struct rte_mbuf *m = 0;
+ do {
+ m = rte_pktmbuf_alloc(t->mbuf_pool);
+ } while (m == NULL);
+
+ m->udata64 = 0;
+
+ struct rte_event ev = {
+ .op = RTE_EVENT_OP_NEW,
+ .queue_id = t->qid[0],
+ .flow_id = (uintptr_t)m & 0xFFFF,
+ .mbuf = m,
+ };
+
+ if (rte_event_enqueue_burst(evdev, port, &ev, 1) != 1) {
+ while (rte_event_enqueue_burst(evdev, port, &ev, 1) !=
+ 1)
+ rte_pause();
+ }
+
+ count++;
+ }
+
+ return 0;
+}
+
+static int
+worker_loopback(struct test *t)
+{
+ /* use a single producer core, and a worker core to see what happens
+ * if the worker loops packets back multiple times
+ */
+ struct test_event_dev_stats stats;
+ uint64_t print_cycles = 0, cycles = 0;
+ uint64_t tx_pkts = 0;
+ int err;
+ int w_lcore, p_lcore;
+
+ if (init(t, 8, 2) < 0 ||
+ create_atomic_qids(t, 8) < 0) {
+ printf("%d: Error initializing device\n", __LINE__);
+ return -1;
+ }
+
+ /* RX with low max events */
+ static struct rte_event_port_conf conf = {
+ .dequeue_depth = 32,
+ .enqueue_depth = 64,
+ };
+ /* beware: this cannot be initialized in the static above as it would
+ * only be initialized once - and this needs to be set for multiple runs
+ */
+ conf.new_event_threshold = 512;
+
+ if (rte_event_port_setup(evdev, 0, &conf) < 0) {
+ printf("Error setting up RX port\n");
+ return -1;
+ }
+ t->port[0] = 0;
+ /* TX with higher max events */
+ conf.new_event_threshold = 4096;
+ if (rte_event_port_setup(evdev, 1, &conf) < 0) {
+ printf("Error setting up TX port\n");
+ return -1;
+ }
+ t->port[1] = 1;
+
+ /* CQ mapping to QID */
+ err = rte_event_port_link(evdev, t->port[1], NULL, NULL, 0);
+ if (err != 8) { /* should have mapped all queues*/
+ printf("%d: error mapping port 2 to all qids\n", __LINE__);
+ return -1;
+ }
+
+ if (rte_event_dev_start(evdev) < 0) {
+ printf("%d: Error with start call\n", __LINE__);
+ return -1;
+ }
+
+ p_lcore = rte_get_next_lcore(
+ /* start core */ -1,
+ /* skip master */ 1,
+ /* wrap */ 0);
+ w_lcore = rte_get_next_lcore(p_lcore, 1, 0);
+
+ rte_eal_remote_launch(worker_loopback_producer_fn, t, p_lcore);
+ rte_eal_remote_launch(worker_loopback_worker_fn, t, w_lcore);
+
+ print_cycles = cycles = rte_get_timer_cycles();
+ while (rte_eal_get_lcore_state(p_lcore) != FINISHED ||
+ rte_eal_get_lcore_state(w_lcore) != FINISHED) {
+
+ rte_event_schedule(evdev);
+
+ uint64_t new_cycles = rte_get_timer_cycles();
+
+ if (new_cycles - print_cycles > rte_get_timer_hz()) {
+ test_event_dev_stats_get(evdev, &stats);
+ printf(
+ "%d: \tSched Rx = %"PRIu64", Tx = %"PRIu64"\n",
+ __LINE__, stats.rx_pkts, stats.tx_pkts);
+
+ print_cycles = new_cycles;
+ }
+ if (new_cycles - cycles > rte_get_timer_hz() * 3) {
+ test_event_dev_stats_get(evdev, &stats);
+ if (stats.tx_pkts == tx_pkts) {
+ rte_event_dev_dump(evdev, stdout);
+ printf("Dumping xstats:\n");
+ xstats_print();
+ printf(
+ "%d: No schedules for seconds, deadlock\n",
+ __LINE__);
+ return -1;
+ }
+ tx_pkts = stats.tx_pkts;
+ cycles = new_cycles;
+ }
+ }
+ rte_event_schedule(evdev); /* ensure all completions are flushed */
+
+ rte_eal_mp_wait_lcore();
+
+ cleanup(t);
+ return 0;
+}
+
static struct rte_mempool *eventdev_func_mempool;
static int
printf("ERROR - Port Reconfig Credits Reset test FAILED.\n");
return ret;
}
+ printf("*** Running Head-of-line-blocking test...\n");
+ ret = holb(t);
+ if (ret != 0) {
+ printf("ERROR - Head-of-line-blocking test FAILED.\n");
+ return ret;
+ }
+ if (rte_lcore_count() >= 3) {
+ printf("*** Running Worker loopback test...\n");
+ ret = worker_loopback(t);
+ if (ret != 0) {
+ printf("ERROR - Worker loopback test FAILED.\n");
+ return ret;
+ }
+ } else {
+ printf("### Not enough cores for worker loopback test.\n");
+ printf("### Need at least 3 cores for test.\n");
+ }
/*
* Free test instance, leaving mempool initialized, and a pointer to it
* in static eventdev_func_mempool, as it is re-used on re-runs
git.droids-corp.org / dpdk.git / commitdiff