When the event timer adapter uses a software implementation, timer
management is performed on a service core using a service registered at
the time of adapter creation. This commit adds a helper function to get
the service id that can be used by an application to assign an lcore for
the service to run on.
Signed-off-by: Erik Gabriel Carrillo <erik.g.carri...@intel.com>
---
lib/librte_eventdev/rte_event_timer_adapter.c | 20 ++++++++++++++++++++
lib/librte_eventdev/rte_event_timer_adapter.h | 19 +++++++++++++++++++
lib/librte_eventdev/rte_event_timer_adapter_pmd.h | 4 ++++
lib/librte_eventdev/rte_eventdev_version.map | 1 +
4 files changed, 44 insertions(+)
diff --git a/lib/librte_eventdev/rte_event_timer_adapter.c
b/lib/librte_eventdev/rte_event_timer_adapter.c
index 27e6226..68748be 100644
--- a/lib/librte_eventdev/rte_event_timer_adapter.c
+++ b/lib/librte_eventdev/rte_event_timer_adapter.c
@@ -378,6 +378,23 @@ rte_event_timer_adapter_free(struct
rte_event_timer_adapter *adapter)
}
int
+rte_event_timer_adapter_service_id_get(struct rte_event_timer_adapter *adapter,
+ uint32_t *service_id)
+{
+ ADAPTER_VALID_OR_ERR_RET(adapter, -EINVAL);
+
+ if (service_id == NULL)
+ return -EINVAL;
+
+ if (adapter->data->service_inited) {
+ *service_id = adapter->data->service_id;
+ return 0;
+ }
+
+ return -ESRCH;
+}
+
+int
rte_event_timer_arm_burst(const struct rte_event_timer_adapter *adapter,
struct rte_event_timer **evtims,
uint16_t nb_evtims)
@@ -521,6 +538,9 @@ sw_event_timer_adapter_init(struct rte_event_timer_adapter
*adapter)
if (ret < 0)
return ret;
+ adapter->data->service_id = sw_data->service_id;
+ adapter->data->service_inited = 1;
+
return 0;
}
diff --git a/lib/librte_eventdev/rte_event_timer_adapter.h
b/lib/librte_eventdev/rte_event_timer_adapter.h
index d1e4d18..84d3c39 100644
--- a/lib/librte_eventdev/rte_event_timer_adapter.h
+++ b/lib/librte_eventdev/rte_event_timer_adapter.h
@@ -402,6 +402,25 @@ struct rte_event_timer_adapter
*rte_event_timer_adapter_lookup(
int rte_event_timer_adapter_free(struct rte_event_timer_adapter *adapter);
/**
+ * Retrieve the service ID of the event timer adapter. If the adapter doesn't
+ * use an rte_service function, this function returns -ESRCH.
+ *
+ * @param adapter
+ * A pointer to an event timer adapter.
+ *
+ * @param [out] service_id
+ * A pointer to a uint32_t, to be filled in with the service id.
+ *
+ * @return
+ * - 0: Success
+ * - <0: Error code on failure, if the event dev doesn't use a rte_service
+ * function, this function returns -ESRCH.
+ */
+int
+rte_event_timer_adapter_service_id_get(struct rte_event_timer_adapter *adapter,
+ uint32_t *service_id);
+
+/**
* @warning
* @b EXPERIMENTAL: this structure may change without prior notice
*
diff --git a/lib/librte_eventdev/rte_event_timer_adapter_pmd.h
b/lib/librte_eventdev/rte_event_timer_adapter_pmd.h
index 485fad1..6c65c36 100644
--- a/lib/librte_eventdev/rte_event_timer_adapter_pmd.h
+++ b/lib/librte_eventdev/rte_event_timer_adapter_pmd.h
@@ -125,6 +125,10 @@ struct rte_event_timer_adapter_data {
/**< Adapter capabilities */
void *adapter_priv;
/**< Timer adapter private data*/
+ uint8_t service_inited;
+ /**< Service initialization state */
+ uint32_t service_id;
+ /**< Service ID*/
RTE_STD_C11
uint8_t started : 1;
diff --git a/lib/librte_eventdev/rte_eventdev_version.map
b/lib/librte_eventdev/rte_eventdev_version.map
index f56ca0f..a35a668 100644
--- a/lib/librte_eventdev/rte_eventdev_version.map
+++ b/lib/librte_eventdev/rte_eventdev_version.map
@@ -75,6 +75,7 @@ DPDK_18.02 {
rte_event_timer_adapter_create_ext;
rte_event_timer_adapter_free;
rte_event_timer_adapter_get_info;
+ rte_event_timer_adapter_service_id_get;
rte_event_timer_adapter_start;
rte_event_timer_adapter_stop;
rte_event_timer_arm_burst;
--
2.6.4
