DPDK
24.11.0-rc3
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Data Structures | |
struct | rte_ml_dev_info |
struct | rte_ml_dev_config |
struct | rte_ml_dev_qp_conf |
struct | rte_ml_buff_seg |
struct | rte_ml_op |
struct | rte_ml_op_error |
struct | rte_ml_dev_stats |
struct | rte_ml_dev_xstats_map |
struct | rte_ml_model_params |
struct | rte_ml_io_info |
struct | rte_ml_model_info |
Macros | |
#define | RTE_ML_STR_MAX 128 |
Typedefs | |
typedef void(* | rte_ml_dev_stop_flush_t) (int16_t dev_id, uint16_t qp_id, struct rte_ml_op *op) |
Functions | |
__rte_experimental int | rte_ml_dev_init (size_t dev_max) |
__rte_experimental uint16_t | rte_ml_dev_count (void) |
__rte_experimental int | rte_ml_dev_is_valid_dev (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_socket_id (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_info_get (int16_t dev_id, struct rte_ml_dev_info *dev_info) |
__rte_experimental int | rte_ml_dev_configure (int16_t dev_id, const struct rte_ml_dev_config *config) |
__rte_experimental uint16_t | rte_ml_dev_queue_pair_count (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_queue_pair_setup (int16_t dev_id, uint16_t queue_pair_id, const struct rte_ml_dev_qp_conf *qp_conf, int socket_id) |
__rte_experimental int | rte_ml_dev_start (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_stop (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_close (int16_t dev_id) |
__rte_experimental uint16_t | rte_ml_enqueue_burst (int16_t dev_id, uint16_t qp_id, struct rte_ml_op **ops, uint16_t nb_ops) |
__rte_experimental uint16_t | rte_ml_dequeue_burst (int16_t dev_id, uint16_t qp_id, struct rte_ml_op **ops, uint16_t nb_ops) |
__rte_experimental int | rte_ml_op_error_get (int16_t dev_id, struct rte_ml_op *op, struct rte_ml_op_error *error) |
__rte_experimental int | rte_ml_dev_stats_get (int16_t dev_id, struct rte_ml_dev_stats *stats) |
__rte_experimental void | rte_ml_dev_stats_reset (int16_t dev_id) |
__rte_experimental int | rte_ml_dev_xstats_names_get (int16_t dev_id, enum rte_ml_dev_xstats_mode mode, int32_t model_id, struct rte_ml_dev_xstats_map *xstats_map, uint32_t size) |
__rte_experimental int | rte_ml_dev_xstats_by_name_get (int16_t dev_id, const char *name, uint16_t *stat_id, uint64_t *value) |
__rte_experimental int | rte_ml_dev_xstats_get (int16_t dev_id, enum rte_ml_dev_xstats_mode mode, int32_t model_id, const uint16_t stat_ids[], uint64_t values[], uint16_t nb_ids) |
__rte_experimental int | rte_ml_dev_xstats_reset (int16_t dev_id, enum rte_ml_dev_xstats_mode mode, int32_t model_id, const uint16_t stat_ids[], uint16_t nb_ids) |
__rte_experimental int | rte_ml_dev_dump (int16_t dev_id, FILE *fd) |
__rte_experimental int | rte_ml_dev_selftest (int16_t dev_id) |
__rte_experimental int | rte_ml_model_load (int16_t dev_id, struct rte_ml_model_params *params, uint16_t *model_id) |
__rte_experimental int | rte_ml_model_unload (int16_t dev_id, uint16_t model_id) |
__rte_experimental int | rte_ml_model_start (int16_t dev_id, uint16_t model_id) |
__rte_experimental int | rte_ml_model_stop (int16_t dev_id, uint16_t model_id) |
__rte_experimental int | rte_ml_model_info_get (int16_t dev_id, uint16_t model_id, struct rte_ml_model_info *model_info) |
__rte_experimental int | rte_ml_model_params_update (int16_t dev_id, uint16_t model_id, void *buffer) |
__rte_experimental int | rte_ml_io_float32_to_int8 (const void *fp32, void *i8, uint64_t nb_elements, float scale, int8_t zero_point) |
__rte_experimental int | rte_ml_io_int8_to_float32 (const void *i8, void *fp32, uint64_t nb_elements, float scale, int8_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_uint8 (const void *fp32, void *ui8, uint64_t nb_elements, float scale, uint8_t zero_point) |
__rte_experimental int | rte_ml_io_uint8_to_float32 (const void *ui8, void *fp32, uint64_t nb_elements, float scale, uint8_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_int16 (const void *fp32, void *i16, uint64_t nb_elements, float scale, int16_t zero_point) |
__rte_experimental int | rte_ml_io_int16_to_float32 (const void *i16, void *fp32, uint64_t nb_elements, float scale, int16_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_uint16 (const void *fp32, void *ui16, uint64_t nb_elements, float scale, uint16_t zero_point) |
__rte_experimental int | rte_ml_io_uint16_to_float32 (const void *ui16, void *fp32, uint64_t nb_elements, float scale, uint16_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_int32 (const void *fp32, void *i32, uint64_t nb_elements, float scale, int32_t zero_point) |
__rte_experimental int | rte_ml_io_int32_to_float32 (const void *i32, void *fp32, uint64_t nb_elements, float scale, int32_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_uint32 (const void *fp32, void *ui32, uint64_t nb_elements, float scale, uint32_t zero_point) |
__rte_experimental int | rte_ml_io_uint32_to_float32 (const void *ui32, void *fp32, uint64_t nb_elements, float scale, uint32_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_int64 (const void *fp32, void *i64, uint64_t nb_elements, float scale, int64_t zero_point) |
__rte_experimental int | rte_ml_io_int64_to_float32 (const void *i64, void *fp32, uint64_t nb_elements, float scale, int64_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_uint64 (const void *fp32, void *ui64, uint64_t nb_elements, float scale, uint64_t zero_point) |
__rte_experimental int | rte_ml_io_uint64_to_float32 (const void *ui64, void *fp32, uint64_t nb_elements, float scale, uint64_t zero_point) |
__rte_experimental int | rte_ml_io_float32_to_float16 (const void *fp32, void *fp16, uint64_t nb_elements) |
__rte_experimental int | rte_ml_io_float16_to_float32 (const void *fp16, void *fp32, uint64_t nb_elements) |
__rte_experimental int | rte_ml_io_float32_to_bfloat16 (const void *fp32, void *bf16, uint64_t nb_elements) |
__rte_experimental int | rte_ml_io_bfloat16_to_float32 (const void *bf16, void *fp32, uint64_t nb_elements) |
__rte_experimental int | rte_ml_io_quantize (int16_t dev_id, uint16_t model_id, struct rte_ml_buff_seg **dbuffer, struct rte_ml_buff_seg **qbuffer) |
__rte_experimental int | rte_ml_io_dequantize (int16_t dev_id, uint16_t model_id, struct rte_ml_buff_seg **qbuffer, struct rte_ml_buff_seg **dbuffer) |
__rte_experimental 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) |
__rte_experimental void | rte_ml_op_pool_free (struct rte_mempool *mempool) |
ML (Machine Learning) device API.
The ML framework is built on the following model:
+-----------------+ rte_ml_[en|de]queue_burst() | | | | Machine o------+ +--------+ | | Learning | | | queue | | +------+ | Inference o------+-----o |<===o===>|Core 0| | Engine | | | pair 0 | +------+ | o----+ | +--------+ | | | | +-----------------+ | | +--------+ ^ | | | queue | +------+ | | +-----o |<=======>|Core 1| | | | pair 1 | +------+ | | +--------+ +--------+--------+ | | +-------------+ | | +--------+ | | Model 0 | | | | queue | +------+ | +-------------+ | +-------o |<=======>|Core N| | +-------------+ | | pair N | +------+ | | Model 1 | | +--------+ | +-------------+ | | +-------------+ |<------> rte_ml_model_load() | | Model .. | |-------> rte_ml_model_info_get() | +-------------+ |<------- rte_ml_model_start() | +-------------+ |<------- rte_ml_model_stop() | | Model N | |<------- rte_ml_model_params_update() | +-------------+ |<------- rte_ml_model_unload() +-----------------+
ML Device: A hardware or software-based implementation of ML device API for running inferences using a pre-trained ML model.
ML Model: An ML model is an algorithm trained over a dataset. A model consists of procedure/algorithm and data/pattern required to make predictions on live data. Once the model is created and trained outside of the DPDK scope, the model can be loaded via rte_ml_model_load() and then start it using rte_ml_model_start() API. The rte_ml_model_params_update() can be used to update the model parameters such as weight and bias without unloading the model using rte_ml_model_unload().
ML Inference: ML inference is the process of feeding data to the model via rte_ml_enqueue_burst() API and use rte_ml_dequeue_burst() API to get the calculated outputs/predictions from the started model.
In all functions of the ML device API, the ML device is designated by an integer >= 0 named as device identifier dev_id.
The functions exported by the ML device API to setup a device designated by its device identifier must be invoked in the following order:
- rte_ml_dev_configure() - rte_ml_dev_queue_pair_setup() - rte_ml_dev_start()
A model is required to run the inference operations with the user specified inputs. Application needs to invoke the ML model API in the following order before queueing inference jobs.
- rte_ml_model_load() - rte_ml_model_start()
A model can be loaded on a device only after the device has been configured and can be started or stopped only after a device has been started.
The rte_ml_model_info_get() API is provided to retrieve the information related to the model. The information would include the shape and type of input and output required for the inference.
Data quantization and dequantization is one of the main aspects in ML domain. This involves conversion of input data from a higher precision to a lower precision data type and vice-versa for the output. APIs are provided to enable quantization through rte_ml_io_quantize() and dequantization through rte_ml_io_dequantize(). These APIs have the capability to handle input and output buffers holding data for multiple batches.
Two utility APIs rte_ml_io_input_size_get() and rte_ml_io_output_size_get() can used to get the size of quantized and de-quantized multi-batch input and output buffers.
User can optionally update the model parameters with rte_ml_model_params_update() after invoking rte_ml_model_stop() API on a given model ID.
The application can invoke, in any order, the functions exported by the ML API to enqueue inference jobs and dequeue inference response.
If the application wants to change the device configuration (i.e., call rte_ml_dev_configure() or rte_ml_dev_queue_pair_setup()), then application must stop the device using rte_ml_dev_stop() API. Likewise, if model parameters need to be updated then the application must call rte_ml_model_stop() followed by rte_ml_model_params_update() API for the given model. The application does not need to call rte_ml_dev_stop() API for any model re-configuration such as rte_ml_model_params_update(), rte_ml_model_unload() etc.
Once the device is in the start state after invoking rte_ml_dev_start() API and the model is in start state after invoking rte_ml_model_start() API, then the application can call rte_ml_enqueue_burst() and rte_ml_dequeue_burst() API on the destined device and model ID.
Finally, an application can close an ML device by invoking the rte_ml_dev_close() function.
Typical application utilisation of the ML API will follow the following programming flow.
Regarding multi-threading, by default, all the functions of the ML Device API exported by a PMD are lock-free functions which assume to not be invoked in parallel on different logical cores on the same target object. For instance, the dequeue function of a poll mode driver cannot be invoked in parallel on two logical cores to operate on same queue pair. Of course, this function can be invoked in parallel by different logical core on different queue pair. It is the responsibility of the user application to enforce this rule.
Definition in file rte_mldev.h.
#define RTE_ML_STR_MAX 128 |
Maximum length of name string
Definition at line 152 of file rte_mldev.h.
Callback function called during rte_ml_dev_stop(), invoked once per flushed ML op
Definition at line 302 of file rte_mldev.h.
enum rte_ml_op_status |
Status of ML operation
Enumerator | |
---|---|
RTE_ML_OP_STATUS_SUCCESS | Operation completed successfully |
RTE_ML_OP_STATUS_NOT_PROCESSED | Operation has not yet been processed by the device. |
RTE_ML_OP_STATUS_ERROR | Operation completed with error. Application can invoke rte_ml_op_error_get() to get PMD specific error code if needed. |
Definition at line 404 of file rte_mldev.h.
Selects the component of the mldev to retrieve statistics from.
Enumerator | |
---|---|
RTE_ML_DEV_XSTATS_DEVICE | Device xstats |
RTE_ML_DEV_XSTATS_MODEL | Model xstats |
Definition at line 632 of file rte_mldev.h.
enum rte_ml_io_type |
Input and output data types. ML models can operate on reduced precision datatypes to achieve better power efficiency, lower network latency and lower memory footprint. This enum is used to represent the lower precision integer and floating point types used by ML models.
Definition at line 875 of file rte_mldev.h.
enum rte_ml_io_layout |
ML I/O buffer layout
Enumerator | |
---|---|
RTE_ML_IO_LAYOUT_PACKED | All inputs for the model should packed in a single buffer with no padding between individual inputs. The buffer is expected to be aligned to rte_ml_dev_info::align_size. When I/O segmentation is supported by the device, the packed data can be split into multiple segments. In this case, each segment is expected to be aligned to rte_ml_dev_info::align_size Same applies to output.
|
RTE_ML_IO_LAYOUT_SPLIT | Each input for the model should be stored as separate buffers and each input should be aligned to rte_ml_dev_info::align_size. When I/O segmentation is supported, each input can be split into multiple segments. In this case, each segment is expected to be aligned to rte_ml_dev_info::align_size Same applies to output.
|
Definition at line 905 of file rte_mldev.h.
__rte_experimental int rte_ml_dev_init | ( | size_t | dev_max | ) |
Maximum number of devices if rte_ml_dev_init() is not called. Initialize the device array before probing devices. If not called, the first device probed would initialize the array to a size of RTE_MLDEV_DEFAULT_MAX.
dev_max | Maximum number of devices. |
__rte_experimental uint16_t rte_ml_dev_count | ( | void | ) |
Get the total number of ML devices that have been successfully initialised.
__rte_experimental int rte_ml_dev_is_valid_dev | ( | int16_t | dev_id | ) |
Check if the device is in ready state.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_socket_id | ( | int16_t | dev_id | ) |
Return the NUMA socket to which a device is connected.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_info_get | ( | int16_t | dev_id, |
struct rte_ml_dev_info * | dev_info | ||
) |
Retrieve the information of the device.
dev_id | The identifier of the device. |
dev_info | A pointer to a structure of type rte_ml_dev_info to be filled with the info of the device. |
__rte_experimental int rte_ml_dev_configure | ( | int16_t | dev_id, |
const struct rte_ml_dev_config * | config | ||
) |
Configure an ML device.
This function must be invoked first before any other function in the API.
ML Device can be re-configured, when in a stopped state. Device cannot be re-configured after rte_ml_dev_close() is called.
The caller may use rte_ml_dev_info_get() to get the capability of each resources available for this ML device.
dev_id | The identifier of the device to configure. |
config | The ML device configuration structure. |
__rte_experimental uint16_t rte_ml_dev_queue_pair_count | ( | int16_t | dev_id | ) |
Get the number of queue pairs on a specific ML device.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_queue_pair_setup | ( | int16_t | dev_id, |
uint16_t | queue_pair_id, | ||
const struct rte_ml_dev_qp_conf * | qp_conf, | ||
int | socket_id | ||
) |
Set up a queue pair for a device. This should only be called when the device is stopped.
dev_id | The identifier of the device. |
queue_pair_id | The index of the queue pairs to set up. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_ml_dev_configure(). |
qp_conf | The pointer to the configuration data to be used for the queue pair. |
socket_id | The socket_id argument is the socket identifier in case of NUMA. The value can be SOCKET_ID_ANY if there is no NUMA constraint for the memory allocated for the queue pair. |
__rte_experimental int rte_ml_dev_start | ( | int16_t | dev_id | ) |
Start an ML device.
The device start step consists of setting the configured features and enabling the ML device to accept inference jobs.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_stop | ( | int16_t | dev_id | ) |
Stop an ML device. A stopped device cannot accept inference jobs. The device can be restarted with a call to rte_ml_dev_start().
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_close | ( | int16_t | dev_id | ) |
Close an ML device. The device cannot be restarted!
dev_id | The identifier of the device. |
__rte_experimental uint16_t rte_ml_enqueue_burst | ( | int16_t | dev_id, |
uint16_t | qp_id, | ||
struct rte_ml_op ** | ops, | ||
uint16_t | nb_ops | ||
) |
Enqueue a burst of ML inferences for processing on an ML device.
The rte_ml_enqueue_burst() function is invoked to place ML inference operations on the queue qp_id of the device designated by its dev_id.
The nb_ops parameter is the number of inferences to process which are supplied in the ops array of rte_ml_op structures.
The rte_ml_enqueue_burst() function returns the number of inferences it actually enqueued for processing. A return value equal to nb_ops means that all packets have been enqueued.
dev_id | The identifier of the device. |
qp_id | The index of the queue pair which inferences are to be enqueued for processing. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_ml_dev_configure. |
ops | The address of an array of nb_ops pointers to rte_ml_op structures which contain the ML inferences to be processed. |
nb_ops | The number of operations to process. |
__rte_experimental uint16_t rte_ml_dequeue_burst | ( | int16_t | dev_id, |
uint16_t | qp_id, | ||
struct rte_ml_op ** | ops, | ||
uint16_t | nb_ops | ||
) |
Dequeue a burst of processed ML inferences operations from a queue on the ML device. The dequeued operations are stored in rte_ml_op structures whose pointers are supplied in the ops array.
The rte_ml_dequeue_burst() function returns the number of inferences actually dequeued, which is the number of rte_ml_op data structures effectively supplied into the ops array.
A return value equal to nb_ops indicates that the queue contained at least nb_ops* operations, and this is likely to signify that other processed operations remain in the devices output queue. Application implementing a "retrieve as many processed operations as possible" policy can check this specific case and keep invoking the rte_ml_dequeue_burst() function until a value less than nb_ops is returned.
The rte_ml_dequeue_burst() function does not provide any error notification to avoid the corresponding overhead.
dev_id | The identifier of the device. |
qp_id | The index of the queue pair from which to retrieve processed packets. The value must be in the range [0, nb_queue_pairs - 1] previously supplied to rte_ml_dev_configure(). |
ops | The address of an array of pointers to rte_ml_op structures that must be large enough to store nb_ops pointers in it. |
nb_ops | The maximum number of inferences to dequeue. |
__rte_experimental int rte_ml_op_error_get | ( | int16_t | dev_id, |
struct rte_ml_op * | op, | ||
struct rte_ml_op_error * | error | ||
) |
Get PMD specific error information for an ML op.
When an ML operation completed with RTE_ML_OP_STATUS_ERROR as status, This API allows to get PMD specific error details.
[in] | dev_id | Device identifier |
[in] | op | Handle of ML operation |
[in] | error | Address of structure rte_ml_op_error to be filled |
__rte_experimental int rte_ml_dev_stats_get | ( | int16_t | dev_id, |
struct rte_ml_dev_stats * | stats | ||
) |
Retrieve the general I/O statistics of a device.
dev_id | The identifier of the device. |
stats | Pointer to structure to where statistics will be copied. On error, this location may or may not have been modified. |
__rte_experimental void rte_ml_dev_stats_reset | ( | int16_t | dev_id | ) |
Reset the statistics of a device.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_dev_xstats_names_get | ( | int16_t | dev_id, |
enum rte_ml_dev_xstats_mode | mode, | ||
int32_t | model_id, | ||
struct rte_ml_dev_xstats_map * | xstats_map, | ||
uint32_t | size | ||
) |
Retrieve names of extended statistics of an ML device.
dev_id | The identifier of the device. | |
mode | Mode of statistics to retrieve. Choices include the device statistics and model statistics. | |
model_id | Used to specify the model number in model mode, and is ignored in device mode. | |
[out] | xstats_map | Block of memory to insert names and ids into. Must be at least size in capacity. If set to NULL, function returns required capacity. The id values returned can be passed to rte_ml_dev_xstats_get to select statistics. |
size | Capacity of xstats_names (number of xstats_map). |
__rte_experimental int rte_ml_dev_xstats_by_name_get | ( | int16_t | dev_id, |
const char * | name, | ||
uint16_t * | stat_id, | ||
uint64_t * | value | ||
) |
Retrieve the value of a single stat by requesting it by name.
dev_id | The identifier of the device. | |
name | Name of stat name to retrieve. | |
[out] | stat_id | If non-NULL, the numerical id of the stat will be returned, so that further requests for the stat can be got using rte_ml_dev_xstats_get, which will be faster as it doesn't need to scan a list of names for the stat. If the stat cannot be found, the id returned will be (unsigned)-1. |
[out] | value | Value of the stat to be returned. |
__rte_experimental int rte_ml_dev_xstats_get | ( | int16_t | dev_id, |
enum rte_ml_dev_xstats_mode | mode, | ||
int32_t | model_id, | ||
const uint16_t | stat_ids[], | ||
uint64_t | values[], | ||
uint16_t | nb_ids | ||
) |
Retrieve extended statistics of an ML device.
dev_id | The identifier of the device. | |
mode | Mode of statistics to retrieve. Choices include the device statistics and model statistics. | |
model_id | Used to specify the model id in model mode, and is ignored in device mode. | |
stat_ids | ID numbers of the stats to get. The ids can be got from the stat position in the stat list from rte_ml_dev_xstats_names_get(), or by using rte_ml_dev_xstats_by_name_get(). | |
[out] | values | Values for each stats request by ID. |
nb_ids | Number of stats requested. |
__rte_experimental int rte_ml_dev_xstats_reset | ( | int16_t | dev_id, |
enum rte_ml_dev_xstats_mode | mode, | ||
int32_t | model_id, | ||
const uint16_t | stat_ids[], | ||
uint16_t | nb_ids | ||
) |
Reset the values of the xstats of the selected component in the device.
dev_id | The identifier of the device. |
mode | Mode of the statistics to reset. Choose from device or model. |
model_id | Model stats to reset. 0 and positive values select models, while -1 indicates all models. |
stat_ids | Selects specific statistics to be reset. When NULL, all statistics selected by mode will be reset. If non-NULL, must point to array of at least nb_ids size. |
nb_ids | The number of ids available from the ids array. Ignored when ids is NULL. |
__rte_experimental int rte_ml_dev_dump | ( | int16_t | dev_id, |
FILE * | fd | ||
) |
Dump internal information about dev_id to the FILE* provided in fd.
dev_id | The identifier of the device. |
fd | A pointer to a file for output. |
__rte_experimental int rte_ml_dev_selftest | ( | int16_t | dev_id | ) |
Trigger the ML device self test.
dev_id | The identifier of the device. |
__rte_experimental int rte_ml_model_load | ( | int16_t | dev_id, |
struct rte_ml_model_params * | params, | ||
uint16_t * | model_id | ||
) |
Load an ML model to the device.
Load an ML model to the device with parameters requested in the structure rte_ml_model_params.
[in] | dev_id | The identifier of the device. |
[in] | params | Parameters for the model to be loaded. |
[out] | model_id | Identifier of the model loaded. |
__rte_experimental int rte_ml_model_unload | ( | int16_t | dev_id, |
uint16_t | model_id | ||
) |
Unload an ML model from the device.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier of the model to be unloaded. |
__rte_experimental int rte_ml_model_start | ( | int16_t | dev_id, |
uint16_t | model_id | ||
) |
Start an ML model for the given device ID.
Start an ML model to accept inference requests.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier of the model to be started. |
__rte_experimental int rte_ml_model_stop | ( | int16_t | dev_id, |
uint16_t | model_id | ||
) |
Stop an ML model for the given device ID.
Model stop would disable the ML model to be used for inference jobs. All inference jobs must have been completed before model stop is attempted.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier of the model to be stopped. |
__rte_experimental int rte_ml_model_info_get | ( | int16_t | dev_id, |
uint16_t | model_id, | ||
struct rte_ml_model_info * | model_info | ||
) |
Get ML model information.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier for the model created |
[out] | model_info | Pointer to a model info structure |
__rte_experimental int rte_ml_model_params_update | ( | int16_t | dev_id, |
uint16_t | model_id, | ||
void * | buffer | ||
) |
Update the model parameters without unloading model.
Update model parameters such as weights and bias without unloading the model. rte_ml_model_stop() must be called before invoking this API.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier for the model created |
[in] | buffer | Pointer to the model weights and bias buffer. Size of the buffer is equal to wb_size returned in rte_ml_model_info. |
__rte_experimental int rte_ml_io_float32_to_int8 | ( | const void * | fp32, |
void * | i8, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int8_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to signed 8-bit integer format (INT8).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | i8 | Output buffer to store INT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_int8_to_float32 | ( | const void * | i8, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int8_t | zero_point | ||
) |
Convert a buffer containing numbers in signed 8-bit integer format (INT8) to single precision floating format (float32).
[in] | i8 | Input buffer containing INT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_uint8 | ( | const void * | fp32, |
void * | ui8, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint8_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to unsigned 8-bit integer format (UINT8).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | ui8 | Output buffer to store UINT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_uint8_to_float32 | ( | const void * | ui8, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint8_t | zero_point | ||
) |
Convert a buffer containing numbers in unsigned 8-bit integer format (UINT8) to single precision floating format (float32).
[in] | ui8 | Input buffer containing UINT8 numbers. Size of buffer is equal to (nb_elements * 1) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_int16 | ( | const void * | fp32, |
void * | i16, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int16_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to signed 16-bit integer format (INT16).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | i16 | Output buffer to store INT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_int16_to_float32 | ( | const void * | i16, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int16_t | zero_point | ||
) |
Convert a buffer containing numbers in signed 16-bit integer format (INT16) to single precision floating format (float32).
[in] | i16 | Input buffer containing INT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_uint16 | ( | const void * | fp32, |
void * | ui16, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint16_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to unsigned 16-bit integer format (UINT16).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | ui16 | Output buffer to store UINT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_uint16_to_float32 | ( | const void * | ui16, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint16_t | zero_point | ||
) |
Convert a buffer containing numbers in unsigned 16-bit integer format (UINT16) to single precision floating format (float32).
[in] | ui16 | Input buffer containing UINT16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_int32 | ( | const void * | fp32, |
void * | i32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int32_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to signed 32-bit integer format (INT32).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | i32 | Output buffer to store INT32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_int32_to_float32 | ( | const void * | i32, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int32_t | zero_point | ||
) |
Convert a buffer containing numbers in signed 32-bit integer format (INT32) to single precision floating format (float32).
[in] | i32 | Input buffer containing INT32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_uint32 | ( | const void * | fp32, |
void * | ui32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint32_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to unsigned 32-bit integer format (UINT32).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | ui32 | Output buffer to store UINT32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_uint32_to_float32 | ( | const void * | ui32, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint32_t | zero_point | ||
) |
Convert a buffer containing numbers in unsigned 32-bit integer format (UINT32) to single precision floating format (float32).
[in] | ui32 | Input buffer containing UINT32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_int64 | ( | const void * | fp32, |
void * | i64, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int64_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to signed 64-bit integer format (INT64).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | i64 | Output buffer to store INT64 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_int64_to_float32 | ( | const void * | i64, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
int64_t | zero_point | ||
) |
Convert a buffer containing numbers in signed 64-bit integer format (INT64) to single precision floating format (float32).
[in] | i64 | Input buffer containing INT64 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_uint64 | ( | const void * | fp32, |
void * | ui64, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint64_t | zero_point | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to unsigned 64-bit integer format (UINT64).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | ui64 | Output buffer to store UINT64 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_uint64_to_float32 | ( | const void * | ui64, |
void * | fp32, | ||
uint64_t | nb_elements, | ||
float | scale, | ||
uint64_t | zero_point | ||
) |
Convert a buffer containing numbers in unsigned 64-bit integer format (UINT64) to single precision floating format (float32).
[in] | ui64 | Input buffer containing UINT64 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
[in] | scale | Scale factor for conversion. |
[in] | zero_point | Zero point for conversion. |
__rte_experimental int rte_ml_io_float32_to_float16 | ( | const void * | fp32, |
void * | fp16, | ||
uint64_t | nb_elements | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to half precision floating point format (FP16).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements *4) bytes. |
[out] | fp16 | Output buffer to store float16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
__rte_experimental int rte_ml_io_float16_to_float32 | ( | const void * | fp16, |
void * | fp32, | ||
uint64_t | nb_elements | ||
) |
Convert a buffer containing numbers in half precision floating format (FP16) to single precision floating point format (float32).
[in] | fp16 | Input buffer containing float16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
__rte_experimental int rte_ml_io_float32_to_bfloat16 | ( | const void * | fp32, |
void * | bf16, | ||
uint64_t | nb_elements | ||
) |
Convert a buffer containing numbers in single precision floating format (float32) to brain floating point format (bfloat16).
[in] | fp32 | Input buffer containing float32 numbers. Size of buffer is equal to (nb_elements *4) bytes. |
[out] | bf16 | Output buffer to store bfloat16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
__rte_experimental int rte_ml_io_bfloat16_to_float32 | ( | const void * | bf16, |
void * | fp32, | ||
uint64_t | nb_elements | ||
) |
Convert a buffer containing numbers in brain floating point format (bfloat16) to single precision floating point format (float32).
[in] | bf16 | Input buffer containing bfloat16 numbers. Size of buffer is equal to (nb_elements * 2) bytes. |
[out] | fp32 | Output buffer to store float32 numbers. Size of buffer is equal to (nb_elements * 4) bytes. |
[in] | nb_elements | Number of elements in the buffer. |
__rte_experimental int rte_ml_io_quantize | ( | int16_t | dev_id, |
uint16_t | model_id, | ||
struct rte_ml_buff_seg ** | dbuffer, | ||
struct rte_ml_buff_seg ** | qbuffer | ||
) |
Quantize input data.
Quantization converts data from a higher precision types to a lower precision types to improve the throughput and efficiency of the model execution with minimal loss of accuracy. Types of dequantized data and quantized data are specified by the model.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier for the model |
[in] | dbuffer | Address of dequantized input data |
[in] | qbuffer | Address of quantized input data |
__rte_experimental int rte_ml_io_dequantize | ( | int16_t | dev_id, |
uint16_t | model_id, | ||
struct rte_ml_buff_seg ** | qbuffer, | ||
struct rte_ml_buff_seg ** | dbuffer | ||
) |
Dequantize output data.
Dequantization converts data from a lower precision type to a higher precision type. Types of quantized data and dequantized are specified by the model.
[in] | dev_id | The identifier of the device. |
[in] | model_id | Identifier for the model |
[in] | qbuffer | Address of quantized output data |
[in] | dbuffer | Address of dequantized output data |
__rte_experimental 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 | ||
) |
Create an ML operation pool
name | ML operations pool name |
nb_elts | Number of elements in pool |
cache_size | Number of elements to cache on lcore, see rte_mempool_create for further details about cache size |
user_size | Size of private data to allocate for user with each operation |
socket_id | Socket to identifier allocate memory on |
__rte_experimental void rte_ml_op_pool_free | ( | struct rte_mempool * | mempool | ) |
Free an ML operation pool
mempool | A pointer to the mempool structure. If NULL then, the function does nothing. |