Added rte_event_eth_rx_adapter_instance_get() to get
adapter instance id for specified ethernet device id and
rx queue index.

Signed-off-by: Ganapati Kundapura <ganapati.kundap...@intel.com>

Reviewed-by: Naga Harish K S V <s.v.naga.haris...@intel.com>
Acked-by: Jay Jayatheerthan <jay.jayatheert...@intel.com>
---
v11:
* added instance_get under 22.11 in version.map

v10:
* Add Review and Ack to series

v9:
* Corrected rte_event_eth_tx_adapter_instanceget to
* rte_event_eth_tx_adapter_instance_get in event_ethernet_tx_adapter.rst

v8:
* Removed limits.h inclusion

v7:
* Remove allocation of instance array and storage of instnace id
* in instance array
* Use Rx adapter instance data to query instance id for specified
* eth_dev_id and rx_queue_id

v6:
* rx adapter changes removed from patch4 and moved to patch1

v5:
* patch is split into saperate patches

v4:
* Moved instance array allocation and instance id storage
  before adapter's nb_queue updation for handling the
  error case  properly

v3:
* Fixed checkpatch error

v2:
* Fixed build issues
* Added telemetry support for rte_event_eth_rx_adapter_instance_get
* arranged functions in alphabetical order in version.map

diff --git a/lib/eventdev/eventdev_pmd.h b/lib/eventdev/eventdev_pmd.h
index 6940266..c58ba05 100644
--- a/lib/eventdev/eventdev_pmd.h
+++ b/lib/eventdev/eventdev_pmd.h
@@ -888,6 +888,26 @@ typedef int (*eventdev_eth_rx_adapter_vector_limits_get_t)(
        const struct rte_eventdev *dev, const struct rte_eth_dev *eth_dev,
        struct rte_event_eth_rx_adapter_vector_limits *limits);
 
+/**
+ * Get Rx adapter instance id for Rx queue
+ *
+ * @param eth_dev_id
+ *  Port identifier of ethernet device
+ *
+ * @param rx_queue_id
+ *  Ethernet device Rx queue index
+ *
+ * @param[out] rxa_inst_id
+ *  Pointer to Rx adapter instance identifier.
+ *  Contains valid Rx adapter instance id when return value is 0
+ *
+ * @return
+ *   -  0: Success
+ *   - <0: Error code on failure
+ */
+typedef int (*eventdev_eth_rx_adapter_instance_get_t)
+       (uint16_t eth_dev_id, uint16_t rx_queue_id, uint8_t *rxa_inst_id);
+
 typedef uint32_t rte_event_pmd_selftest_seqn_t;
 extern int rte_event_pmd_selftest_seqn_dynfield_offset;
 
@@ -1321,6 +1341,8 @@ struct eventdev_ops {
        eventdev_eth_rx_adapter_vector_limits_get_t
                eth_rx_adapter_vector_limits_get;
        /**< Get event vector limits for the Rx adapter */
+       eventdev_eth_rx_adapter_instance_get_t eth_rx_adapter_instance_get;
+       /**< Get Rx adapter instance id for Rx queue */
 
        eventdev_timer_adapter_caps_get_t timer_adapter_caps_get;
        /**< Get timer adapter capabilities */
diff --git a/lib/eventdev/rte_event_eth_rx_adapter.c 
b/lib/eventdev/rte_event_eth_rx_adapter.c
index bf8741d..ababe13 100644
--- a/lib/eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/eventdev/rte_event_eth_rx_adapter.c
@@ -1415,15 +1415,13 @@ rxa_service_func(void *args)
        return 0;
 }
 
-static int
-rte_event_eth_rx_adapter_init(void)
+static void *
+rxa_memzone_array_get(const char *name, unsigned int elt_size, int nb_elems)
 {
-       const char *name = RXA_ADAPTER_ARRAY;
        const struct rte_memzone *mz;
        unsigned int sz;
 
-       sz = sizeof(*event_eth_rx_adapter) *
-           RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE;
+       sz = elt_size * nb_elems;
        sz = RTE_ALIGN(sz, RTE_CACHE_LINE_SIZE);
 
        mz = rte_memzone_lookup(name);
@@ -1431,13 +1429,34 @@ rte_event_eth_rx_adapter_init(void)
                mz = rte_memzone_reserve_aligned(name, sz, rte_socket_id(), 0,
                                                 RTE_CACHE_LINE_SIZE);
                if (mz == NULL) {
-                       RTE_EDEV_LOG_ERR("failed to reserve memzone err = %"
-                                       PRId32, rte_errno);
-                       return -rte_errno;
+                       RTE_EDEV_LOG_ERR("failed to reserve memzone"
+                                        " name = %s, err = %"
+                                        PRId32, name, rte_errno);
+                       return NULL;
                }
        }
 
-       event_eth_rx_adapter = mz->addr;
+       return mz->addr;
+}
+
+static int
+rte_event_eth_rx_adapter_init(void)
+{
+       uint8_t i;
+
+       if (event_eth_rx_adapter == NULL) {
+               event_eth_rx_adapter =
+                       rxa_memzone_array_get(RXA_ADAPTER_ARRAY,
+                                       sizeof(*event_eth_rx_adapter),
+                                       RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE);
+               if (event_eth_rx_adapter == NULL)
+                       return -ENOMEM;
+
+               for (i = 0; i < RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE; i++)
+                       event_eth_rx_adapter[i] = NULL;
+
+       }
+
        return 0;
 }
 
@@ -1450,6 +1469,7 @@ rxa_memzone_lookup(void)
                mz = rte_memzone_lookup(RXA_ADAPTER_ARRAY);
                if (mz == NULL)
                        return -ENOMEM;
+
                event_eth_rx_adapter = mz->addr;
        }
 
@@ -1951,7 +1971,6 @@ rxa_sw_del(struct event_eth_rx_adapter *rx_adapter,
        int intrq;
        int sintrq;
 
-
        if (rx_adapter->nb_queues == 0)
                return;
 
@@ -2524,6 +2543,9 @@ rte_event_eth_rx_adapter_free(uint8_t id)
 {
        struct event_eth_rx_adapter *rx_adapter;
 
+       if (rxa_memzone_lookup())
+               return -ENOMEM;
+
        RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
 
        rx_adapter = rxa_id_to_adapter(id);
@@ -2561,6 +2583,9 @@ rte_event_eth_rx_adapter_queue_add(uint8_t id,
        struct eth_device_info *dev_info;
        struct rte_event_eth_rx_adapter_vector_limits limits;
 
+       if (rxa_memzone_lookup())
+               return -ENOMEM;
+
        RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
        RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
 
@@ -2726,6 +2751,9 @@ rte_event_eth_rx_adapter_queue_del(uint8_t id, uint16_t 
eth_dev_id,
        uint32_t *rx_wrr = NULL;
        int num_intr_vec;
 
+       if (rxa_memzone_lookup())
+               return -ENOMEM;
+
        RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
        RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
 
@@ -2832,6 +2860,7 @@ rte_event_eth_rx_adapter_queue_del(uint8_t id, uint16_t 
eth_dev_id,
 
        rte_eventdev_trace_eth_rx_adapter_queue_del(id, eth_dev_id,
                rx_queue_id, ret);
+
        return ret;
 }
 
@@ -3286,6 +3315,97 @@ rte_event_eth_rx_adapter_queue_conf_get(uint8_t id,
        return 0;
 }
 
+static int
+rxa_is_queue_added(struct event_eth_rx_adapter *rx_adapter,
+                  uint16_t eth_dev_id,
+                  uint16_t rx_queue_id)
+{
+       struct eth_device_info *dev_info;
+       struct eth_rx_queue_info *queue_info;
+
+       if (!rx_adapter->eth_devices)
+               return 0;
+
+       dev_info = &rx_adapter->eth_devices[eth_dev_id];
+       if (!dev_info || !dev_info->rx_queue)
+               return 0;
+
+       queue_info = &dev_info->rx_queue[rx_queue_id];
+
+       return queue_info && queue_info->queue_enabled;
+}
+
+#define rxa_evdev(rx_adapter) (&rte_eventdevs[(rx_adapter)->eventdev_id])
+
+#define rxa_dev_instance_get(rx_adapter) \
+               rxa_evdev((rx_adapter))->dev_ops->eth_rx_adapter_instance_get
+
+int
+rte_event_eth_rx_adapter_instance_get(uint16_t eth_dev_id,
+                                     uint16_t rx_queue_id,
+                                     uint8_t *rxa_inst_id)
+{
+       uint8_t id;
+       int ret = -EINVAL;
+       uint32_t caps;
+       struct event_eth_rx_adapter *rx_adapter;
+
+       if (rxa_memzone_lookup())
+               return -ENOMEM;
+
+       if (eth_dev_id >= rte_eth_dev_count_avail()) {
+               RTE_EDEV_LOG_ERR("Invalid ethernet port id %u", eth_dev_id);
+               return -EINVAL;
+       }
+
+       if (rx_queue_id >= rte_eth_devices[eth_dev_id].data->nb_rx_queues) {
+               RTE_EDEV_LOG_ERR("Invalid Rx queue %u", rx_queue_id);
+               return -EINVAL;
+       }
+
+       if (rxa_inst_id == NULL) {
+               RTE_EDEV_LOG_ERR("rxa_inst_id cannot be NULL");
+               return -EINVAL;
+       }
+
+       /* Iterate through all adapter instances */
+       for (id = 0; id < RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE; id++) {
+               rx_adapter = rxa_id_to_adapter(id);
+               if (!rx_adapter)
+                       continue;
+
+               if (rxa_is_queue_added(rx_adapter, eth_dev_id, rx_queue_id)) {
+                       *rxa_inst_id = rx_adapter->id;
+                       ret = 0;
+               }
+
+               /* Rx adapter internally mainatains queue information
+                * for both internal port and DPDK service port.
+                * Eventdev PMD callback is called for future proof only and
+                * overrides the above return value if defined.
+                */
+               caps = 0;
+               if (!rte_event_eth_rx_adapter_caps_get(rx_adapter->eventdev_id,
+                                                     eth_dev_id,
+                                                     &caps)) {
+                       if (caps & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT) {
+                               ret = rxa_dev_instance_get(rx_adapter) ?
+                                               rxa_dev_instance_get(rx_adapter)
+                                                               (eth_dev_id,
+                                                                rx_queue_id,
+                                                                rxa_inst_id)
+                                                       : -EINVAL;
+                       }
+               }
+
+               /* return if entry found */
+               if (ret == 0)
+                       return ret;
+       }
+
+       return -EINVAL;
+}
+
 #define RXA_ADD_DICT(stats, s) rte_tel_data_add_dict_u64(d, #s, stats.s)
 
 static int
diff --git a/lib/eventdev/rte_event_eth_rx_adapter.h 
b/lib/eventdev/rte_event_eth_rx_adapter.h
index 3608a7b..a3313c8 100644
--- a/lib/eventdev/rte_event_eth_rx_adapter.h
+++ b/lib/eventdev/rte_event_eth_rx_adapter.h
@@ -38,6 +38,7 @@
  *  - rte_event_eth_rx_adapter_queue_stats_get()
  *  - rte_event_eth_rx_adapter_queue_stats_reset()
  *  - rte_event_eth_rx_adapter_event_port_get()
+ *  - rte_event_eth_rx_adapter_instance_get()
  *
  * The application creates an ethernet to event adapter using
  * rte_event_eth_rx_adapter_create_ext() or rte_event_eth_rx_adapter_create()
@@ -704,6 +705,29 @@ __rte_experimental
 int
 rte_event_eth_rx_adapter_event_port_get(uint8_t id, uint8_t *event_port_id);
 
+/**
+ * Get RX adapter instance ID for a RX queue
+ *
+ * @param eth_dev_id
+ *  Port identifier of Ethernet device.
+ *
+ * @param rx_queue_id
+ *  Ethernet device receive queue index.
+ *
+ * @param[out] rxa_inst_id
+ *  Pointer to store RX adapter instance identifier.
+ *  Contains valid Rx adapter instance id when return value is 0
+ *
+ * @return
+ *  -  0: Success
+ *  - <0: Error code on failure
+ */
+__rte_experimental
+int
+rte_event_eth_rx_adapter_instance_get(uint16_t eth_dev_id,
+                                     uint16_t rx_queue_id,
+                                     uint8_t *rxa_inst_id);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/eventdev/version.map b/lib/eventdev/version.map
index 886e2ec..da07a23 100644
--- a/lib/eventdev/version.map
+++ b/lib/eventdev/version.map
@@ -112,6 +112,9 @@ EXPERIMENTAL {
        # added in 22.07
        rte_event_port_quiesce;
        rte_event_queue_attr_set;
+
+       # added in 22.11
+       rte_event_eth_rx_adapter_instance_get;
 };
 
 INTERNAL {
-- 
2.6.4

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