[v4,1/2] eventdev: add rx queue conf get api
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Commit Message
Added rte_event_eth_rx_adapter_queue_conf_get() API to get rx queue
information - event queue identifier, flags for handling received packets,
schedular type, event priority, polling frequency of the receive queue
and flow identifier in rte_event_eth_rx_adapter_queue_conf structure
Signed-off-by: Ganapati Kundapura <ganapati.kundapura@intel.com>
---
v4:
* squashed 1/3 and 3/3
* reused rte_event_eth_rx_adapter_queue_conf structure in place of
rte_event_eth_rx_adapter_queue_info
* renamed to rte_event_eth_rx_adapter_queue_info_get() to
rte_event_eth_rx_adapter_queue_conf_get to align with
rte_event_eth_rx_adapter_queue_conf structure
v3:
* Split single patch into implementaion, test and document updation
patches separately
v2:
* Fixed build issue due to missing entry in version.map
v1:
* Initial patch with implementaion, test and doc together
---
.../prog_guide/event_ethernet_rx_adapter.rst | 8 +++
lib/eventdev/eventdev_pmd.h | 29 +++++++++
lib/eventdev/rte_event_eth_rx_adapter.c | 75 ++++++++++++++++++++++
lib/eventdev/rte_event_eth_rx_adapter.h | 26 ++++++++
lib/eventdev/version.map | 1 +
5 files changed, 139 insertions(+)
@@ -146,6 +146,14 @@ if the callback is supported, and the counts maintained by the service function,
if one exists. The service function also maintains a count of cycles for which
it was not able to enqueue to the event device.
+Getting Adapter queue config
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``rte_event_eth_rx_adapter_queue_conf_get()`` function reports
+flags for handling received packets, event queue identifier, scheduar type,
+event priority, polling frequency of the receive queue and flow identifier
+in struct ``rte_event_eth_rx_adapter_queue_conf``.
+
Interrupt Based Rx Queues
~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -562,6 +562,33 @@ typedef int (*eventdev_eth_rx_adapter_queue_del_t)
int32_t rx_queue_id);
/**
+ * Retrieve information about Rx queue. This callback is invoked if
+ * the caps returned from the eventdev_eth_rx_adapter_caps_get(, eth_port_id)
+ * has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set.
+ *
+ * @param dev
+ * Event device pointer
+ *
+ * @param eth_dev
+ * Ethernet device pointer
+ *
+ * @param rx_queue_id
+ * Ethernet device receive queue index.
+ *
+ * @param[out] queue_conf
+ * Pointer to rte_event_eth_rx_adapter_queue_conf structure
+ *
+ * @return
+ * - 0: Success
+ * - <0: Error code on failure.
+ */
+typedef int (*eventdev_eth_rx_adapter_queue_conf_get_t)
+ (const struct rte_eventdev *dev,
+ const struct rte_eth_dev *eth_dev,
+ uint16_t rx_queue_id,
+ struct rte_event_eth_rx_adapter_queue_conf *queue_conf);
+
+/**
* Start ethernet Rx adapter. This callback is invoked if
* the caps returned from eventdev_eth_rx_adapter_caps_get(.., eth_port_id)
* has RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT set and Rx queues
@@ -1107,6 +1134,8 @@ struct rte_eventdev_ops {
/**< Add Rx queues to ethernet Rx adapter */
eventdev_eth_rx_adapter_queue_del_t eth_rx_adapter_queue_del;
/**< Delete Rx queues from ethernet Rx adapter */
+ eventdev_eth_rx_adapter_queue_conf_get_t eth_rx_adapter_queue_conf_get;
+ /**< Get Rx adapter queue info */
eventdev_eth_rx_adapter_start_t eth_rx_adapter_start;
/**< Start ethernet Rx adapter */
eventdev_eth_rx_adapter_stop_t eth_rx_adapter_stop;
@@ -2811,3 +2811,78 @@ rte_event_eth_rx_adapter_cb_register(uint8_t id,
return 0;
}
+
+int
+rte_event_eth_rx_adapter_queue_conf_get(uint8_t id,
+ uint16_t eth_dev_id,
+ uint16_t rx_queue_id,
+ struct rte_event_eth_rx_adapter_queue_conf *queue_conf)
+{
+ struct rte_eventdev *dev;
+ struct eth_device_info *dev_info;
+ struct rte_event_eth_rx_adapter *rx_adapter;
+ struct eth_rx_queue_info *queue_info;
+ struct rte_event *qi_ev;
+ int ret;
+ uint32_t cap;
+
+ RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
+
+ if (rx_queue_id >= rte_eth_devices[eth_dev_id].data->nb_rx_queues) {
+ RTE_EDEV_LOG_ERR("Invalid rx queue_id %u", rx_queue_id);
+ return -EINVAL;
+ }
+
+ if (queue_conf == NULL) {
+ RTE_EDEV_LOG_ERR("Rx queue conf struct cannot be NULL");
+ return -EINVAL;
+ }
+
+ rx_adapter = rxa_id_to_adapter(id);
+ if (rx_adapter == NULL)
+ return -EINVAL;
+
+ dev = &rte_eventdevs[rx_adapter->eventdev_id];
+ ret = rte_event_eth_rx_adapter_caps_get(rx_adapter->eventdev_id,
+ eth_dev_id,
+ &cap);
+ if (ret) {
+ RTE_EDEV_LOG_ERR("Failed to get adapter caps edev %" PRIu8
+ "eth port %" PRIu16, id, eth_dev_id);
+ return ret;
+ }
+
+ if (cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT) {
+ RTE_FUNC_PTR_OR_ERR_RET(
+ *dev->dev_ops->eth_rx_adapter_queue_conf_get,
+ -ENOTSUP);
+ ret = (*dev->dev_ops->eth_rx_adapter_queue_conf_get)(dev,
+ &rte_eth_devices[eth_dev_id],
+ rx_queue_id,
+ queue_conf);
+ return ret;
+ }
+
+ dev_info = &rx_adapter->eth_devices[eth_dev_id];
+
+ queue_info = &dev_info->rx_queue[rx_queue_id];
+ if (!queue_info->queue_enabled) {
+ RTE_EDEV_LOG_ERR("Rx queue %u not added", rx_queue_id);
+ return -EINVAL;
+ }
+
+ qi_ev = (struct rte_event *)&queue_info->event;
+
+ memset(queue_conf, 0, sizeof(*queue_conf));
+ queue_conf->rx_queue_flags = 0;
+ if (queue_info->flow_id_mask != 0)
+ queue_conf->rx_queue_flags |=
+ RTE_EVENT_ETH_RX_ADAPTER_QUEUE_FLOW_ID_VALID;
+
+ queue_conf->servicing_weight = queue_info->wt;
+
+ memcpy(&queue_conf->ev, qi_ev, sizeof(*qi_ev));
+
+ return 0;
+}
@@ -33,6 +33,7 @@
* - rte_event_eth_rx_adapter_stop()
* - rte_event_eth_rx_adapter_stats_get()
* - rte_event_eth_rx_adapter_stats_reset()
+ * - rte_event_eth_rx_adapter_queue_conf_get()
*
* The application creates an ethernet to event adapter using
* rte_event_eth_rx_adapter_create_ext() or rte_event_eth_rx_adapter_create()
@@ -575,6 +576,31 @@ int rte_event_eth_rx_adapter_queue_event_vector_config(
uint8_t id, uint16_t eth_dev_id, int32_t rx_queue_id,
struct rte_event_eth_rx_adapter_event_vector_config *config);
+/**
+ * Retrieve Rx queue config information.
+ *
+ * @param id
+ * Adapter identifier.
+
+ * @param eth_dev_id
+ * Port identifier of Ethernet device.
+
+ * @param rx_queue_id
+ * Ethernet device receive queue index.
+
+ * @param[out] queue_conf
+ * Pointer to struct rte_event_eth_rx_adapter_queue_conf
+
+ * @return
+ * - 0: Success, Receive queue added correctly.
+ * - <0: Error code on failure.
+ */
+__rte_experimental
+int rte_event_eth_rx_adapter_queue_conf_get(uint8_t id,
+ uint16_t eth_dev_id,
+ uint16_t rx_queue_id,
+ struct rte_event_eth_rx_adapter_queue_conf *queue_conf);
+
#ifdef __cplusplus
}
#endif
@@ -143,6 +143,7 @@ EXPERIMENTAL {
rte_event_vector_pool_create;
rte_event_eth_rx_adapter_vector_limits_get;
rte_event_eth_rx_adapter_queue_event_vector_config;
+ rte_event_eth_rx_adapter_queue_conf_get;
__rte_eventdev_trace_crypto_adapter_enqueue;
};