int test_alarm(void) { int count = 0; /* check if the callback will be called */ printf("check if the callback will be called\n"); flag = 0; if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT * US_PER_MS, test_alarm_callback, NULL) < 0) { printf("fail to set alarm callback\n"); return -1; } while (flag == 0 && count ++ < 6) rte_delay_ms(RTE_TEST_CHECK_PERIOD); if (flag == 0){ printf("Callback not called\n"); return -1; } /* check if it will fail to set alarm with wrong us value */ printf("check if it will fail to set alarm with wrong ms values\n"); if (rte_eal_alarm_set(0, test_alarm_callback, NULL) >= 0) { printf("should not be successful with 0 us value\n"); return -1; } if (rte_eal_alarm_set(UINT64_MAX - 1, test_alarm_callback, NULL) >= 0) { printf("should not be successful with (UINT64_MAX-1) us value\n"); return -1; } /* check if it will fail to set alarm with null callback parameter */ printf("check if it will fail to set alarm with null callback parameter\n"); if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT, NULL, NULL) >= 0) { printf("should not be successful to set alarm with null callback parameter\n"); return -1; } /* check if it will fail to remove alarm with null callback parameter */ printf("check if it will fail to remove alarm with null callback parameter\n"); if (rte_eal_alarm_cancel(NULL, NULL) == 0) { printf("should not be successful to remove alarm with null callback parameter"); return -1; } if (test_multi_alarms() != 0) return -1; return 0; }
static void qed_start_iov_task(struct ecore_dev *edev) { struct ecore_hwfn *p_hwfn; int i; for_each_hwfn(edev, i) { p_hwfn = &edev->hwfns[i]; if (!IS_PF(edev)) rte_eal_alarm_set(QEDE_ALARM_TIMEOUT_US, qede_vf_task, p_hwfn); }
static void qede_vf_task(void *arg) { struct ecore_hwfn *p_hwfn = arg; uint8_t change = 0; /* Read the bulletin board, and re-schedule the task */ ecore_vf_read_bulletin(p_hwfn, &change); if (change) qed_handle_bulletin_change(p_hwfn); rte_eal_alarm_set(QEDE_ALARM_TIMEOUT_US, qede_vf_task, p_hwfn); }
int failsafe_hotplug_alarm_install(struct rte_eth_dev *dev) { int ret; if (dev == NULL) return -EINVAL; if (PRIV(dev)->pending_alarm) return 0; ret = rte_eal_alarm_set(failsafe_hotplug_poll * 1000, fs_hotplug_alarm, dev); if (ret) { ERROR("Could not set up plug-in event detection"); return ret; } PRIV(dev)->pending_alarm = 1; return 0; }
static void sfc_ev_mgmt_periodic_qpoll(void *arg) { struct sfc_adapter *sa = arg; int rc; sfc_ev_mgmt_qpoll(sa); rc = rte_eal_alarm_set(SFC_MGMT_EV_QPOLL_PERIOD_US, sfc_ev_mgmt_periodic_qpoll, sa); if (rc == -ENOTSUP) { sfc_warn(sa, "alarms are not supported"); sfc_warn(sa, "management EVQ must be polled indirectly using no-wait link status update"); } else if (rc != 0) { sfc_err(sa, "cannot rearm management EVQ polling alarm (rc=%d)", rc); } }
/** * Link status handler. * * @param priv * Pointer to private structure. * @param dev * Pointer to the rte_eth_dev structure. * * @return * Nonzero if the callback process can be called immediately. */ static int priv_dev_link_status_handler(struct priv *priv, struct rte_eth_dev *dev) { struct ibv_async_event event; int port_change = 0; int ret = 0; /* Read all message and acknowledge them. */ for (;;) { if (ibv_get_async_event(priv->ctx, &event)) break; if (event.event_type == IBV_EVENT_PORT_ACTIVE || event.event_type == IBV_EVENT_PORT_ERR) port_change = 1; else DEBUG("event type %d on port %d not handled", event.event_type, event.element.port_num); ibv_ack_async_event(&event); } if (port_change ^ priv->pending_alarm) { struct rte_eth_link *link = &dev->data->dev_link; priv->pending_alarm = 0; mlx5_link_update_unlocked(dev, 0); if (((link->link_speed == 0) && link->link_status) || ((link->link_speed != 0) && !link->link_status)) { /* Inconsistent status, check again later. */ priv->pending_alarm = 1; rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US, mlx5_dev_link_status_handler, dev); } else ret = 1; } return ret; }
static int test_multi_alarms(void) { int rm_count = 0; cb_count.cnt = 0; printf("Expect 6 callbacks in order...\n"); /* add two alarms in order */ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1); rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2); /* now add in reverse order */ rte_eal_alarm_set(6000 * US_PER_MS, test_multi_cb, (void *)6); rte_eal_alarm_set(5000 * US_PER_MS, test_multi_cb, (void *)5); rte_eal_alarm_set(4000 * US_PER_MS, test_multi_cb, (void *)4); rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3); /* wait for expiry */ rte_delay_ms(6500); if (cb_count.cnt != 6) { printf("Missing callbacks\n"); /* remove any callbacks that might remain */ rte_eal_alarm_cancel(test_multi_cb, (void *)-1); return -1; } cb_count.cnt = 0; printf("Expect only callbacks with args 1 and 3...\n"); /* Add 3 flags, then delete one */ rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3); rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2); rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1); rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2); rte_delay_ms(3500); if (cb_count.cnt != 2 || rm_count != 1) { printf("Error: invalid flags count or alarm removal failure" " - flags value = %d, expected = %d\n", (int)cb_count.cnt, 2); /* remove any callbacks that might remain */ rte_eal_alarm_cancel(test_multi_cb, (void *)-1); return -1; } printf("Testing adding and then removing multiple alarms\n"); /* finally test that no callbacks are called if we delete them all*/ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1); rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)2); rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)3); rm_count = rte_eal_alarm_cancel(test_alarm_callback, (void *)-1); if (rm_count != 0) { printf("Error removing non-existant alarm succeeded\n"); rte_eal_alarm_cancel(test_multi_cb, (void *) -1); return -1; } rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *) -1); if (rm_count != 3) { printf("Error removing all pending alarm callbacks\n"); return -1; } /* Test that we cannot cancel an alarm from within the callback itself * Also test that we can cancel head-of-line callbacks ok.*/ flag = 0; recursive_error = 0; rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1); rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback, (void *)2); rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)1); if (rm_count != 1) { printf("Error cancelling head-of-list callback\n"); return -1; } rte_delay_ms(1500); if (flag != 0) { printf("Error, cancelling head-of-list leads to premature callback\n"); return -1; } rte_delay_ms(1000); if (flag != 2) { printf("Error - expected callback not called\n"); rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1); return -1; } if (recursive_error == 1) return -1; /* Check if it can cancel all for the same callback */ printf("Testing canceling all for the same callback\n"); flag_2 = 0; rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1); rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback_2, (void *)2); rte_eal_alarm_set(3000 * US_PER_MS, test_remove_in_callback_2, (void *)3); rte_eal_alarm_set(4000 * US_PER_MS, test_remove_in_callback, (void *)4); rm_count = rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1); if (rm_count != 2) { printf("Error, cannot cancel all for the same callback\n"); return -1; } rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1); if (rm_count != 2) { printf("Error, cannot cancel all for the same callback\n"); return -1; } return 0; }