[lng-odp] [PATCH 1/2] add queue size param and related capability

[Honnappa Nagarahalli]

Added size parameter indicating the maximum number of events in the
queue and the corresponding queue capability changes.

Signed-off-by: Honnappa Nagarahalli <honnappa.nagaraha...@linaro.org>
---
 include/odp/api/spec/queue.h       | 12 ++++++++++++
 platform/linux-generic/odp_queue.c |  1 +
 2 files changed, 13 insertions(+)

diff --git a/include/odp/api/spec/queue.h b/include/odp/api/spec/queue.h
index 7972fea..ccb6fb8 100644
--- a/include/odp/api/spec/queue.h
+++ b/include/odp/api/spec/queue.h
@@ -112,6 +112,12 @@ typedef struct odp_queue_capability_t {
        /** Number of scheduling priorities */
        unsigned sched_prios;
 
+       /** Maximum number of events in the queue.
+         *
+         * Value of zero indicates the size is limited only by the available
+         * memory in the system. */
+       unsigned max_size;
+
 } odp_queue_capability_t;
 
 /**
@@ -124,6 +130,12 @@ typedef struct odp_queue_param_t {
          * the queue type. */
        odp_queue_type_t type;
 
+       /** Queue size
+         *
+         * Maximum number of events in the queue. Value of 0 chooses the
+         * default configuration of the implementation. */
+       uint32_t size;
+
        /** Enqueue mode
          *
          * Default value for both queue types is ODP_QUEUE_OP_MT. Application
diff --git a/platform/linux-generic/odp_queue.c 
b/platform/linux-generic/odp_queue.c
index fcf4bf5..5a50a57 100644
--- a/platform/linux-generic/odp_queue.c
+++ b/platform/linux-generic/odp_queue.c
@@ -175,6 +175,7 @@ int odp_queue_capability(odp_queue_capability_t *capa)
        capa->max_ordered_locks = sched_fn->max_ordered_locks();
        capa->max_sched_groups  = sched_fn->num_grps();
        capa->sched_prios       = odp_schedule_num_prio();
+       capa->max_size          = 0;
 
        return 0;
 }
-- 
2.7.4