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rte_compressdev_pmd.h(3) DPDK rte_compressdev_pmd.h(3)

NAME

rte_compressdev_pmd.h

SYNOPSIS

#include <string.h>
#include <dev_driver.h>
#include 'rte_compressdev.h'
#include 'rte_compressdev_internal.h'

Data Structures


struct rte_compressdev_global
struct rte_compressdev_ops

Typedefs


typedef int(* compressdev_configure_t) (struct rte_compressdev *dev, struct rte_compressdev_config *config)
typedef int(* compressdev_start_t) (struct rte_compressdev *dev)
typedef void(* compressdev_stop_t) (struct rte_compressdev *dev)
typedef int(* compressdev_close_t) (struct rte_compressdev *dev)
typedef void(* compressdev_stats_get_t) (struct rte_compressdev *dev, struct rte_compressdev_stats *stats)
typedef void(* compressdev_stats_reset_t) (struct rte_compressdev *dev)
typedef void(* compressdev_info_get_t) (struct rte_compressdev *dev, struct rte_compressdev_info *dev_info)
typedef int(* compressdev_queue_pair_setup_t) (struct rte_compressdev *dev, uint16_t qp_id, uint32_t max_inflight_ops, int socket_id)
typedef int(* compressdev_queue_pair_release_t) (struct rte_compressdev *dev, uint16_t qp_id)
typedef int(* compressdev_stream_create_t) (struct rte_compressdev *dev, const struct rte_comp_xform *xform, void **stream)
typedef int(* compressdev_stream_free_t) (struct rte_compressdev *dev, void *stream)
typedef int(* compressdev_private_xform_create_t) (struct rte_compressdev *dev, const struct rte_comp_xform *xform, void **private_xform)
typedef int(* compressdev_private_xform_free_t) (struct rte_compressdev *dev, void *private_xform)

Functions


struct rte_compressdev * rte_compressdev_pmd_get_named_dev (const char *name)

Detailed Description

RTE comp PMD APIs

Note

These APIs are for comp PMDs only and user applications should not call them directly.

Definition in file rte_compressdev_pmd.h.

Typedef Documentation

typedef int(* compressdev_configure_t) (struct rte_compressdev *dev, struct rte_compressdev_config *config)

Definitions of all functions exported by a driver through the generic structure of type comp_dev_ops supplied in the rte_compressdev structure associated with a device. Function used to configure device.

Parameters

dev Compress device
config Compress device configurations

Returns

Returns 0 on success

Definition at line 80 of file rte_compressdev_pmd.h.

typedef int(* compressdev_start_t) (struct rte_compressdev *dev)

Function used to start a configured device.

Parameters

dev Compress device

Returns

Returns 0 on success

Definition at line 91 of file rte_compressdev_pmd.h.

typedef void(* compressdev_stop_t) (struct rte_compressdev *dev)

Function used to stop a configured device.

Parameters

dev Compress device

Definition at line 99 of file rte_compressdev_pmd.h.

typedef int(* compressdev_close_t) (struct rte_compressdev *dev)

Function used to close a configured device.

Parameters

dev Compress device

Returns

  • 0 on success.
  • EAGAIN if can't close as device is busy

Definition at line 110 of file rte_compressdev_pmd.h.

typedef void(* compressdev_stats_get_t) (struct rte_compressdev *dev, struct rte_compressdev_stats *stats)

Function used to get statistics of a device.

Parameters

dev Compress device
stats Compress device stats to populate

Definition at line 121 of file rte_compressdev_pmd.h.

typedef void(* compressdev_stats_reset_t) (struct rte_compressdev *dev)

Function used to reset statistics of a device.

Parameters

dev Compress device

Definition at line 131 of file rte_compressdev_pmd.h.

typedef void(* compressdev_info_get_t) (struct rte_compressdev *dev, struct rte_compressdev_info *dev_info)

Function used to get specific information of a device.

Parameters

dev Compress device
dev_info Compress device information to populate

Definition at line 142 of file rte_compressdev_pmd.h.

typedef int(* compressdev_queue_pair_setup_t) (struct rte_compressdev *dev, uint16_t qp_id, uint32_t max_inflight_ops, int socket_id)

Setup a queue pair for a device.

Parameters

dev Compress device
qp_id Queue pair identifier
max_inflight_ops Max inflight ops which qp must accommodate
socket_id Socket identifier

Returns

Returns 0 on success.

Definition at line 159 of file rte_compressdev_pmd.h.

typedef int(* compressdev_queue_pair_release_t) (struct rte_compressdev *dev, uint16_t qp_id)

Release memory resources allocated by given queue pair.

Parameters

dev Compress device
qp_id Queue pair identifier

Returns

  • 0 on success.
  • EAGAIN if can't close as device is busy

Definition at line 173 of file rte_compressdev_pmd.h.

typedef int(* compressdev_stream_create_t) (struct rte_compressdev *dev, const struct rte_comp_xform *xform, void **stream)

Create driver private stream data.

Parameters

dev Compressdev device
xform xform data
stream ptr where handle of pmd's private stream data should be stored

Returns

  • Returns 0 if private stream structure has been created successfully.
  • Returns -EINVAL if input parameters are invalid.
  • Returns -ENOTSUP if comp device does not support STATEFUL operations.
  • Returns -ENOTSUP if comp device does not support the comp transform.
  • Returns -ENOMEM if the private stream could not be allocated.

Definition at line 192 of file rte_compressdev_pmd.h.

typedef int(* compressdev_stream_free_t) (struct rte_compressdev *dev, void *stream)

Free driver private stream data.

Parameters

dev Compressdev device
stream handle of pmd's private stream data

Returns

  • 0 if successful
  • <0 in error cases
  • Returns -EINVAL if input parameters are invalid.
  • Returns -ENOTSUP if comp device does not support STATEFUL operations.
  • Returns -EBUSY if can't free stream as there are inflight operations

Definition at line 209 of file rte_compressdev_pmd.h.

typedef int(* compressdev_private_xform_create_t) (struct rte_compressdev *dev, const struct rte_comp_xform *xform, void **private_xform)

Create driver private_xform data.

Parameters

dev Compressdev device
xform xform data
private_xform ptr where handle of pmd's private_xform data should be stored

Returns

  • if successful returns 0 and valid private_xform handle
  • <0 in error cases
  • Returns -EINVAL if input parameters are invalid.
  • Returns -ENOTSUP if comp device does not support the comp transform.
  • Returns -ENOMEM if the private_xform could not be allocated.

Definition at line 229 of file rte_compressdev_pmd.h.

typedef int(* compressdev_private_xform_free_t) (struct rte_compressdev *dev, void *private_xform)

Free driver private_xform data.

Parameters

dev Compressdev device
private_xform handle of pmd's private_xform data

Returns

  • 0 if successful
  • <0 in error cases
  • Returns -EINVAL if input parameters are invalid.
  • Returns -EBUSY if can't free private_xform due to inflight operations

Definition at line 245 of file rte_compressdev_pmd.h.

Function Documentation

struct rte_compressdev* rte_compressdev_pmd_get_named_dev (const char * name)

Get the rte_compressdev structure device pointer for the named device.

Parameters

name Compress device name

Returns

•
The rte_compressdev structure pointer for the given device identifier.

Author

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Fri Dec 15 2023 Version 23.11.0