[PATCH v9 2/7] eventdev/eth_rx: add telemetry callback for instance get

[Ganapati Kundapura]

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

Signed-off-by: Ganapati Kundapura <ganapati.kundap...@intel.com>
---
 lib/eventdev/rte_event_eth_rx_adapter.c | 66 +++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/lib/eventdev/rte_event_eth_rx_adapter.c 
b/lib/eventdev/rte_event_eth_rx_adapter.c
index ababe13..64a6add 100644
--- a/lib/eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/eventdev/rte_event_eth_rx_adapter.c
@@ -3674,6 +3674,68 @@ handle_rxa_queue_stats_reset(const char *cmd 
__rte_unused,
        return ret;
 }
 
+static int
+handle_rxa_instance_get(const char *cmd __rte_unused,
+                       const char *params,
+                       struct rte_tel_data *d)
+{
+       uint8_t instance_id;
+       uint16_t rx_queue_id;
+       int eth_dev_id, ret = -1;
+       char *token, *l_params;
+
+       if (params == NULL || strlen(params) == 0 || !isdigit(*params))
+               return -1;
+
+       l_params = strdup(params);
+       if (l_params == NULL)
+               return -ENOMEM;
+       token = strtok(l_params, ",");
+       RTE_EVENT_ETH_RX_ADAPTER_TOKEN_VALID_OR_GOTO_ERR_RET(token, -1);
+
+       /* Get device ID from parameter string */
+       eth_dev_id = strtoul(token, NULL, 10);
+       RTE_ETH_VALID_PORTID_OR_GOTO_ERR_RET(eth_dev_id, -EINVAL);
+
+       token = strtok(NULL, ",");
+       RTE_EVENT_ETH_RX_ADAPTER_TOKEN_VALID_OR_GOTO_ERR_RET(token, -1);
+
+       /* Get Rx queue ID from parameter string */
+       rx_queue_id = strtoul(token, NULL, 10);
+       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);
+               ret = -EINVAL;
+               goto error;
+       }
+
+       token = strtok(NULL, "\0");
+       if (token != NULL)
+               RTE_EDEV_LOG_ERR("Extra parameters passed to eventdev"
+                                " telemetry command, ignoring");
+
+       /* Parsing parameter finished */
+       free(l_params);
+
+       if (rte_event_eth_rx_adapter_instance_get(eth_dev_id,
+                                                 rx_queue_id,
+                                                 &instance_id)) {
+               RTE_EDEV_LOG_ERR("Failed to get RX adapter instance ID "
+                                " for rx_queue_id = %d", rx_queue_id);
+               return -1;
+       }
+
+       rte_tel_data_start_dict(d);
+       rte_tel_data_add_dict_u64(d, "eth_dev_id", eth_dev_id);
+       rte_tel_data_add_dict_u64(d, "rx_queue_id", rx_queue_id);
+       rte_tel_data_add_dict_u64(d, "rxa_instance_id", instance_id);
+
+       return 0;
+
+error:
+       free(l_params);
+       return ret;
+}
+
 RTE_INIT(rxa_init_telemetry)
 {
        rte_telemetry_register_cmd("/eventdev/rxa_stats",
@@ -3695,4 +3757,8 @@ RTE_INIT(rxa_init_telemetry)
        rte_telemetry_register_cmd("/eventdev/rxa_queue_stats_reset",
                handle_rxa_queue_stats_reset,
                "Reset Rx queue stats. Parameter: rxa_id, dev_id, queue_id");
+
+       rte_telemetry_register_cmd("/eventdev/rxa_rxq_instance_get",
+               handle_rxa_instance_get,
+               "Returns Rx adapter instance id. Parameter: dev_id, queue_id");
 }
-- 
2.6.4