[PATCH v5 2/4] mldev: implement ML IO type handling functions

[Srikanth Yalavarthi <syalavarthi@marvell.com>]

Implemented ML utility functions to convert IO data type to name,
IO format to name and routine to get the size of an IO data type
in bytes.

Signed-off-by: Srikanth Yalavarthi <syalavarthi@marvell.com>
---
v5:
* Moved the code from drivers/common/ml to lib/mldev
* Added rte_ml_io_ prefix to the functions

v2:
* Implemented common utility functions as part of the patch
* Dropped use of driver routines for data conversion functions

 lib/mldev/mldev_utils.c | 113 ++++++++++++++++++++++++++++++++++++++++
 lib/mldev/version.map   |   4 ++
 2 files changed, 117 insertions(+)

diff --git a/lib/mldev/mldev_utils.c b/lib/mldev/mldev_utils.c
index 9dbbf013a0..d2442b123b 100644
--- a/lib/mldev/mldev_utils.c
+++ b/lib/mldev/mldev_utils.c
@@ -2,4 +2,117 @@
  * Copyright (c) 2022 Marvell.
  */

+#include <errno.h>
+#include <stdint.h>
+
+#include <rte_mldev.h>
+#include <rte_string_fns.h>
+
 #include "mldev_utils.h"
+
+/* Description:
+ * This file implements Machine Learning utility routines, except type conversion routines.
+ */
+
+int
+rte_ml_io_type_size_get(enum rte_ml_io_type type)
+{
+	switch (type) {
+	case RTE_ML_IO_TYPE_UNKNOWN:
+		return -EINVAL;
+	case RTE_ML_IO_TYPE_INT8:
+		return sizeof(int8_t);
+	case RTE_ML_IO_TYPE_UINT8:
+		return sizeof(uint8_t);
+	case RTE_ML_IO_TYPE_INT16:
+		return sizeof(int16_t);
+	case RTE_ML_IO_TYPE_UINT16:
+		return sizeof(uint16_t);
+	case RTE_ML_IO_TYPE_INT32:
+		return sizeof(int32_t);
+	case RTE_ML_IO_TYPE_UINT32:
+		return sizeof(uint32_t);
+	case RTE_ML_IO_TYPE_FP8:
+		return sizeof(uint8_t);
+	case RTE_ML_IO_TYPE_FP16:
+		return sizeof(uint8_t) * 2;
+	case RTE_ML_IO_TYPE_FP32:
+		return sizeof(uint8_t) * 4;
+	case RTE_ML_IO_TYPE_BFLOAT16:
+		return sizeof(uint8_t) * 2;
+	default:
+		return -EINVAL;
+	}
+}
+
+void
+rte_ml_io_type_to_str(enum rte_ml_io_type type, char *str, int len)
+{
+	switch (type) {
+	case RTE_ML_IO_TYPE_UNKNOWN:
+		rte_strlcpy(str, "unknown", len);
+		break;
+	case RTE_ML_IO_TYPE_INT8:
+		rte_strlcpy(str, "int8", len);
+		break;
+	case RTE_ML_IO_TYPE_UINT8:
+		rte_strlcpy(str, "uint8", len);
+		break;
+	case RTE_ML_IO_TYPE_INT16:
+		rte_strlcpy(str, "int16", len);
+		break;
+	case RTE_ML_IO_TYPE_UINT16:
+		rte_strlcpy(str, "uint16", len);
+		break;
+	case RTE_ML_IO_TYPE_INT32:
+		rte_strlcpy(str, "int32", len);
+		break;
+	case RTE_ML_IO_TYPE_UINT32:
+		rte_strlcpy(str, "uint32", len);
+		break;
+	case RTE_ML_IO_TYPE_FP8:
+		rte_strlcpy(str, "float8", len);
+		break;
+	case RTE_ML_IO_TYPE_FP16:
+		rte_strlcpy(str, "float16", len);
+		break;
+	case RTE_ML_IO_TYPE_FP32:
+		rte_strlcpy(str, "float32", len);
+		break;
+	case RTE_ML_IO_TYPE_BFLOAT16:
+		rte_strlcpy(str, "bfloat16", len);
+		break;
+	default:
+		rte_strlcpy(str, "invalid", len);
+	}
+}
+
+void
+rte_ml_io_format_to_str(enum rte_ml_io_format format, char *str, int len)
+{
+	switch (format) {
+	case RTE_ML_IO_FORMAT_NCHW:
+		rte_strlcpy(str, "NCHW", len);
+		break;
+	case RTE_ML_IO_FORMAT_NHWC:
+		rte_strlcpy(str, "NHWC", len);
+		break;
+	case RTE_ML_IO_FORMAT_CHWN:
+		rte_strlcpy(str, "CHWN", len);
+		break;
+	case RTE_ML_IO_FORMAT_3D:
+		rte_strlcpy(str, "3D", len);
+		break;
+	case RTE_ML_IO_FORMAT_2D:
+		rte_strlcpy(str, "Matrix", len);
+		break;
+	case RTE_ML_IO_FORMAT_1D:
+		rte_strlcpy(str, "Vector", len);
+		break;
+	case RTE_ML_IO_FORMAT_SCALAR:
+		rte_strlcpy(str, "Scalar", len);
+		break;
+	default:
+		rte_strlcpy(str, "invalid", len);
+	}
+}
diff --git a/lib/mldev/version.map b/lib/mldev/version.map
index 61955ab701..c2ceedfbb4 100644
--- a/lib/mldev/version.map
+++ b/lib/mldev/version.map
@@ -46,4 +46,8 @@ INTERNAL {
 	rte_ml_dev_pmd_get_dev;
 	rte_ml_dev_pmd_get_named_dev;
 	rte_ml_dev_pmd_release;
+
+	rte_ml_io_type_size_get;
+	rte_ml_io_type_to_str;
+	rte_ml_io_format_to_str;
 };
--
2.17.1