---
 .../prog_guide/event_ethernet_rx_adapter.rst  | 19 ++++++++++++-------
 lib/eventdev/rte_event_eth_rx_adapter.h       |  4 ++++
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/doc/guides/prog_guide/event_ethernet_rx_adapter.rst b/doc/guides/prog_guide/event_ethernet_rx_adapter.rst
index dd753613bd..333e6f8192 100644
--- a/doc/guides/prog_guide/event_ethernet_rx_adapter.rst
+++ b/doc/guides/prog_guide/event_ethernet_rx_adapter.rst

@@ -62,12 +62,14 @@ service function and needs to create an event port for it. The callback is
 expected to fill the ``struct rte_event_eth_rx_adapter_conf structure``
 passed to it.

-If the application desires to control the event buffer size, it can use the
-``rte_event_eth_rx_adapter_create_with_params()`` api. The event buffer size is
-specified using ``struct rte_event_eth_rx_adapter_params::event_buf_size``.
-The function is passed the event device to be associated with the adapter
-and port configuration for the adapter to setup an event port if the
-adapter needs to use a service function.
+If the application desires to control the event buffer size at adapter level,
+it can use the ``rte_event_eth_rx_adapter_create_with_params()`` api. The event
+buffer size is specified using ``struct rte_event_eth_rx_adapter_params::
+event_buf_size``. To configure the event buffer size at queue level, the boolean
+flag ``struct rte_event_eth_rx_adapter_params::use_queue_event_buf`` need to be
+set to true. The function is passed the event device to be associated with
+the adapter and port configuration for the adapter to setup an event port
+if the adapter needs to use a service function.

 Adding Rx Queues to the Adapter Instance
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

@@ -79,7 +81,9 @@ parameter. Event information for packets from this Rx queue is encoded in the
 ``ev`` field of ``struct rte_event_eth_rx_adapter_queue_conf``. The
 servicing_weight member of the struct  rte_event_eth_rx_adapter_queue_conf
 is the relative polling frequency of the Rx queue and is applicable when the
-adapter uses a service core function.
+adapter uses a service core function. The applications can configure queue
+event buffer size in ``struct rte_event_eth_rx_adapter_queue_conf::event_buf_size``
+parameter.

 .. code-block:: c

@@ -90,6 +94,7 @@ adapter uses a service core function.
         queue_config.rx_queue_flags = 0;
         queue_config.ev = ev;
         queue_config.servicing_weight = 1;
+       queue_config.event_buf_size = 1024;

         err = rte_event_eth_rx_adapter_queue_add(id,
                                                 eth_dev_id,

diff --git a/lib/eventdev/rte_event_eth_rx_adapter.h b/lib/eventdev/rte_event_eth_rx_adapter.h
index a7881097b4..b9f0563244 100644
--- a/lib/eventdev/rte_event_eth_rx_adapter.h
+++ b/lib/eventdev/rte_event_eth_rx_adapter.h

@@ -199,6 +199,8 @@ struct rte_event_eth_rx_adapter_queue_conf {
         * Valid when RTE_EVENT_ETH_RX_ADAPTER_QUEUE_EVENT_VECTOR flag is set in
         * @see rte_event_eth_rx_adapter_queue_conf::rx_queue_flags.
         */
+       uint16_t event_buf_size;
+       /**< event buffer size for this queue */
 };

 /**

@@ -265,6 +267,8 @@ struct rte_event_eth_rx_adapter_params {
        /**< size of event buffer for the adapter.
         * the size is aligned to BATCH_SIZE and added (2 * BATCH_SIZE)
         */
+       bool use_queue_event_buf;
+       /**< flag to indicate that event buffer is separate for each queue */
 };

 /**
--

2.25.1