From: Srikanth Yalavarthi <syalavar...@marvell.com>

Added library functions to create and free ML op pool.
Create function allocates new ML op pool and initializes ML
ops to their defaults.

Signed-off-by: Srikanth Yalavarthi <syalavar...@marvell.com>
Signed-off-by: Jerin Jacob <jer...@marvell.com>
---
 lib/mldev/rte_mldev.c | 69 +++++++++++++++++++++++++++++++++++++++++++
 lib/mldev/version.map |  2 ++
 2 files changed, 71 insertions(+)

diff --git a/lib/mldev/rte_mldev.c b/lib/mldev/rte_mldev.c
index 62f0e95c85..b669d866bf 100644
--- a/lib/mldev/rte_mldev.c
+++ b/lib/mldev/rte_mldev.c
@@ -11,6 +11,17 @@ static struct rte_ml_dev ml_devices[RTE_MLDEV_MAX_DEVS];
 static struct rte_ml_dev_global ml_dev_globals = {
        .devs = ml_devices, .data = {NULL}, .nb_devs = 0, .max_devs = 
RTE_MLDEV_MAX_DEVS};
 
+/*
+ * Private data structure of an operation pool.
+ *
+ * A structure that contains ml op_pool specific data that is
+ * appended after the mempool structure (in private data).
+ */
+struct rte_ml_op_pool_private {
+       uint16_t user_size;
+       /*< Size of private user data with each operation. */
+};
+
 struct rte_ml_dev *
 rte_ml_dev_pmd_get_dev(int16_t dev_id)
 {
@@ -559,4 +570,62 @@ rte_ml_io_dequantize(int16_t dev_id, uint16_t model_id, 
uint16_t nb_batches, voi
        return (*dev->dev_ops->io_dequantize)(dev, model_id, nb_batches, 
qbuffer, dbuffer);
 }
 
+/** Initialise rte_ml_op mempool element */
+static void
+ml_op_init(struct rte_mempool *mempool, __rte_unused void *opaque_arg, void 
*_op_data,
+          __rte_unused unsigned int i)
+{
+       struct rte_ml_op *op = _op_data;
+
+       memset(_op_data, 0, mempool->elt_size);
+       op->status = RTE_ML_OP_STATUS_NOT_PROCESSED;
+       op->mempool = mempool;
+}
+
+struct rte_mempool *
+rte_ml_op_pool_create(const char *name, unsigned int nb_elts, unsigned int 
cache_size,
+                     uint16_t user_size, int socket_id)
+{
+       struct rte_ml_op_pool_private *priv;
+       struct rte_mempool *mp;
+       unsigned int elt_size;
+
+       /* lookup mempool in case already allocated */
+       mp = rte_mempool_lookup(name);
+       elt_size = sizeof(struct rte_ml_op) + user_size;
+
+       if (mp != NULL) {
+               priv = (struct rte_ml_op_pool_private 
*)rte_mempool_get_priv(mp);
+               if (mp->elt_size != elt_size || mp->cache_size < cache_size || 
mp->size < nb_elts ||
+                   priv->user_size < user_size) {
+                       mp = NULL;
+                       RTE_MLDEV_LOG(ERR,
+                                     "Mempool %s already exists but with 
incompatible parameters",
+                                     name);
+                       return NULL;
+               }
+               return mp;
+       }
+
+       mp = rte_mempool_create(name, nb_elts, elt_size, cache_size,
+                               sizeof(struct rte_ml_op_pool_private), NULL, 
NULL, ml_op_init, NULL,
+                               socket_id, 0);
+       if (mp == NULL) {
+               RTE_MLDEV_LOG(ERR, "Failed to create mempool %s", name);
+               return NULL;
+       }
+
+       priv = (struct rte_ml_op_pool_private *)rte_mempool_get_priv(mp);
+       priv->user_size = user_size;
+
+       return mp;
+}
+
+void
+rte_ml_op_pool_free(struct rte_mempool *mempool)
+{
+       if (mempool != NULL)
+               rte_mempool_free(mempool);
+}
+
 RTE_LOG_REGISTER_DEFAULT(rte_ml_dev_logtype, INFO);
diff --git a/lib/mldev/version.map b/lib/mldev/version.map
index d87c7781df..b5ee45108b 100644
--- a/lib/mldev/version.map
+++ b/lib/mldev/version.map
@@ -21,6 +21,8 @@ EXPERIMENTAL {
        rte_ml_model_start;
        rte_ml_model_stop;
        rte_ml_model_unload;
+       rte_ml_op_pool_create;
+       rte_ml_op_pool_free;
 
        local: *;
 };
-- 
2.39.1

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