[v5,2/3] eventdev: add support for independent enqueue

Message ID 20240710063323.2533952-3-abdullah.sevincer@intel.com (mailing list archive)
State Deferred
Delegated to: Jerin Jacob
Headers
Series Independent Enqueue Support |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Abdullah Sevincer July 10, 2024, 6:33 a.m. UTC
  This commit adds support for independent enqueue feature
and updates Event Device and PMD feature list.

A new capability RTE_EVENT_DEV_CAP_INDEPENDENT_ENQ is introduced
to support independent enqueue to support PMD to enqueue in any order
even the underlined hardware device needs enqueues in a strict dequeue
order.

To use this capability applications need to set flag
RTE_EVENT_PORT_CFG_INDEPENDENT_ENQ during port setup only if the
capability RTE_EVENT_DEV_CAP_INDEPENDENT_ENQ exists.

Signed-off-by: Abdullah Sevincer <abdullah.sevincer@intel.com>
---
 doc/guides/eventdevs/features/default.ini |  1 +
 doc/guides/eventdevs/features/dlb2.ini    |  1 +
 doc/guides/rel_notes/release_24_07.rst    |  5 +++++
 lib/eventdev/rte_eventdev.h               | 21 +++++++++++++++++++++
 4 files changed, 28 insertions(+)
  

Patch

diff --git a/doc/guides/eventdevs/features/default.ini b/doc/guides/eventdevs/features/default.ini
index 1cc4303fe5..7c4ee99238 100644
--- a/doc/guides/eventdevs/features/default.ini
+++ b/doc/guides/eventdevs/features/default.ini
@@ -22,6 +22,7 @@  carry_flow_id              =
 maintenance_free           =
 runtime_queue_attr         =
 profile_links              =
+independent_enq            =
 
 ;
 ; Features of a default Ethernet Rx adapter.
diff --git a/doc/guides/eventdevs/features/dlb2.ini b/doc/guides/eventdevs/features/dlb2.ini
index 7b80286927..c7193b47c1 100644
--- a/doc/guides/eventdevs/features/dlb2.ini
+++ b/doc/guides/eventdevs/features/dlb2.ini
@@ -15,6 +15,7 @@  implicit_release_disable   = Y
 runtime_port_link          = Y
 multiple_queue_port        = Y
 maintenance_free           = Y
+independent_enq            = Y
 
 [Eth Rx adapter Features]
 
diff --git a/doc/guides/rel_notes/release_24_07.rst b/doc/guides/rel_notes/release_24_07.rst
index 76a79093d1..d8564b19f0 100644
--- a/doc/guides/rel_notes/release_24_07.rst
+++ b/doc/guides/rel_notes/release_24_07.rst
@@ -162,6 +162,11 @@  New Features
   ``RTE_EVENT_PORT_CFG_INDEPENDENT_ENQ`` to enable the feature if the capability
   ``RTE_EVENT_DEV_CAP_INDEPENDENT_ENQ`` exists.
 
+* **Updated Event Device Library for independent enqueue feature**
+
+  * Added support for independent enqueue feature. Updated Event Device and
+    PMD feature list.
+
 
 Removed Items
 -------------
diff --git a/lib/eventdev/rte_eventdev.h b/lib/eventdev/rte_eventdev.h
index 08e5f9320b..106b18fe28 100644
--- a/lib/eventdev/rte_eventdev.h
+++ b/lib/eventdev/rte_eventdev.h
@@ -446,6 +446,17 @@  struct rte_event;
  * @see RTE_SCHED_TYPE_PARALLEL
  */
 
+#define RTE_EVENT_DEV_CAP_INDEPENDENT_ENQ  (1ULL << 16)
+/**< Event device is capable of independent enqueue.
+ * When this flag is set, the application can enqueue to PMD in any order even
+ * the underlined hardware device needs enqueues in a strict dequeue order.
+ * PMD will reorder enqueued events based on their dequeue order when the feature
+ * is enabled on an Eventdev port. The capability supports applications that sort
+ * received bursts based on criteria like flow-id or receive QID and process them
+ * in smaller groups. Each processed group is enqueued separately, changing the
+ * dequeue order.
+ */
+
 /* Event device priority levels */
 #define RTE_EVENT_DEV_PRIORITY_HIGHEST   0
 /**< Highest priority level for events and queues.
@@ -1072,6 +1083,16 @@  rte_event_queue_attr_set(uint8_t dev_id, uint8_t queue_id, uint32_t attr_id,
  *
  *  @see rte_event_port_setup()
  */
+ #define RTE_EVENT_PORT_CFG_INDEPENDENT_ENQ   (1ULL << 5)
+/**< Flag to enable independent enqueue. Must not be set if the device
+ * is not RTE_EVENT_DEV_CAP_INDEPENDENT_ENQ capable. This feature
+ * allows an application to enqueue RTE_EVENT_OP_FORWARD or
+ * RTE_EVENT_OP_RELEASE in an order different than the order the
+ * events were dequeued from the event device, while maintaining
+ * RTE_SCHED_TYPE_ATOMIC or RTE_SCHED_TYPE_ORDERED semantics.
+ *
+ *  @see rte_event_port_setup()
+ */
 
 /** Event port configuration structure */
 struct rte_event_port_conf {