[PATCH v4 1/4] mldev: add headers for internal ML functions

[Srikanth Yalavarthi <syalavarthi@marvell.com>]

Added header files for internal ML utility routines to convert
IO type and format to string, IO type to size and routines to
convert data types.

Signed-off-by: Srikanth Yalavarthi <syalavarthi@marvell.com>
---
 lib/mldev/meson.build   |   2 +
 lib/mldev/mldev_utils.c |   5 +
 lib/mldev/mldev_utils.h | 345 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 352 insertions(+)
 create mode 100644 lib/mldev/mldev_utils.c
 create mode 100644 lib/mldev/mldev_utils.h

diff --git a/lib/mldev/meson.build b/lib/mldev/meson.build
index 5c99532c1a..452b83a480 100644
--- a/lib/mldev/meson.build
+++ b/lib/mldev/meson.build
@@ -4,6 +4,7 @@
 sources = files(
         'rte_mldev_pmd.c',
         'rte_mldev.c',
+        'mldev_utils.c',
 )
 
 headers = files(
@@ -16,6 +17,7 @@ indirect_headers += files(
 
 driver_sdk_headers += files(
         'rte_mldev_pmd.h',
+        'mldev_utils.h',
 )
 
 deps += ['mempool']
diff --git a/lib/mldev/mldev_utils.c b/lib/mldev/mldev_utils.c
new file mode 100644
index 0000000000..9dbbf013a0
--- /dev/null
+++ b/lib/mldev/mldev_utils.c
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2022 Marvell.
+ */
+
+#include "mldev_utils.h"
diff --git a/lib/mldev/mldev_utils.h b/lib/mldev/mldev_utils.h
new file mode 100644
index 0000000000..04cdaab567
--- /dev/null
+++ b/lib/mldev/mldev_utils.h
@@ -0,0 +1,345 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2022 Marvell.
+ */
+
+#ifndef _RTE_MLDEV_UTILS_H_
+#define _RTE_MLDEV_UTILS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ *
+ * RTE ML Device PMD utility API
+ *
+ * These APIs for the use from ML drivers, user applications shouldn't use them.
+ *
+ */
+
+#include <rte_compat.h>
+#include <rte_mldev.h>
+
+/**
+ * @internal
+ *
+ * Get the size an ML IO type in bytes.
+ *
+ * @param[in] type
+ *	Enumeration of ML IO data type.
+ *
+ * @return
+ *	- > 0, Size of the data type in bytes.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_type_size_get(enum rte_ml_io_type type);
+
+/**
+ * @internal
+ *
+ * Get the name of an ML IO type.
+ *
+ * @param[in] type
+ *	Enumeration of ML IO data type.
+ * @param[in] str
+ *	Address of character array.
+ * @param[in] len
+ *	Length of character array.
+ */
+__rte_internal
+void
+rte_ml_io_type_to_str(enum rte_ml_io_type type, char *str, int len);
+
+/**
+ * @internal
+ *
+ * Get the name of an ML IO format.
+ *
+ * @param[in] type
+ *	Enumeration of ML IO format.
+ * @param[in] str
+ *	Address of character array.
+ * @param[in] len
+ *	Length of character array.
+ */
+__rte_internal
+void
+rte_ml_io_format_to_str(enum rte_ml_io_format format, char *str, int len);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to signed 8-bit
+ * integer format (INT8).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ * @param[out] output
+ *	Output buffer to store INT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_int8(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in signed 8-bit integer format (INT8) to single precision
+ * floating format (float32).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing INT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_int8_to_float32(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to unsigned
+ * 8-bit integer format (UINT8).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ * @param[out] output
+ *	Output buffer to store UINT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_uint8(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in unsigned 8-bit integer format (UINT8) to single precision
+ * floating format (float32).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing UINT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_uint8_to_float32(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to signed
+ * 16-bit integer format (INT16).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ * @param[out] output
+ *	Output buffer to store INT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_int16(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in signed 16-bit integer format (INT16) to single precision
+ * floating format (float32).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing INT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_int16_to_float32(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to unsigned
+ * 16-bit integer format (UINT16).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ * @param[out] output
+ *	Output buffer to store UINT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_uint16(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in unsigned 16-bit integer format (UINT16) to single
+ * precision floating format (float32).
+ *
+ * @param[in] scale
+ *      Scale factor for conversion.
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing UINT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_uint16_to_float32(float scale, uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to half
+ * precision floating point format (FP16).
+ *
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements *4) bytes.
+ * @param[out] output
+ *	Output buffer to store float16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_float16(uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in half precision floating format (FP16) to single precision
+ * floating point format (float32).
+ *
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float16_to_float32(uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in single precision floating format (float32) to brain
+ * floating point format (bfloat16).
+ *
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements *4) bytes.
+ * @param[out] output
+ *	Output buffer to store bfloat16 numbers. Size of buffer is equal to (nb_elements * 2) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_float32_to_bfloat16(uint64_t nb_elements, void *input, void *output);
+
+/**
+ * @internal
+ *
+ * Convert a buffer containing numbers in brain floating point format (bfloat16) to single precision
+ * floating point format (float32).
+ *
+ * @param[in] nb_elements
+ *	Number of elements in the buffer.
+ * @param[in] input
+ *	Input buffer containing bfloat16 numbers. Size of buffer is equal to (nb_elements * 2)
+ * bytes.
+ * @param[out] output
+ *	Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes.
+ *
+ * @return
+ *	- 0, Success.
+ *	- < 0, Error code on failure.
+ */
+__rte_internal
+int
+rte_ml_io_bfloat16_to_float32(uint64_t nb_elements, void *input, void *output);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_MLDEV_UTILS_H_ */
-- 
2.17.1