DOKK / manpages / debian 13 / dpdk-doc / rte_vdpa_get_stats.3.en
rte_vdpa.h(3) Library Functions Manual rte_vdpa.h(3)

rte_vdpa.h

#include <stdint.h>


struct rte_vdpa_stat
struct rte_vdpa_stat_name


#define RTE_VDPA_STATS_NAME_SIZE 64


struct rte_vdpa_device * rte_vdpa_find_device_by_name (const char *name)
struct rte_device * rte_vdpa_get_rte_device (struct rte_vdpa_device *vdpa_dev)
int rte_vdpa_get_queue_num (struct rte_vdpa_device *dev, uint32_t *queue_num)
int rte_vdpa_get_features (struct rte_vdpa_device *dev, uint64_t *features)
int rte_vdpa_get_protocol_features (struct rte_vdpa_device *dev, uint64_t *features)
int rte_vdpa_get_stats_names (struct rte_vdpa_device *dev, struct rte_vdpa_stat_name *stats_names, unsigned int size)
int rte_vdpa_get_stats (struct rte_vdpa_device *dev, uint16_t qid, struct rte_vdpa_stat *stats, unsigned int n)
int rte_vdpa_reset_stats (struct rte_vdpa_device *dev, uint16_t qid)

Device specific vhost lib

Definition in file rte_vdpa.h.

Maximum name length for statistics counters

Definition at line 21 of file rte_vdpa.h.

Find the device id of a vdpa device from its name

Parameters

name the vdpa device name

Returns

vDPA device pointer on success, NULL on failure

Get the generic device from the vdpa device

Parameters

vdpa_dev the vdpa device pointer

Returns

generic device pointer on success, NULL on failure

Get number of queue pairs supported by the vDPA device

Parameters

dev vDP device pointer
queue_num pointer on where the number of queue is stored

Returns

0 on success, -1 on failure

Get the Virtio features supported by the vDPA device

Parameters

dev vDP device pointer
features pointer on where the supported features are stored

Returns

0 on success, -1 on failure

Get the Vhost-user protocol features supported by the vDPA device

Parameters

dev vDP device pointer
features pointer on where the supported protocol features are stored

Returns

0 on success, -1 on failure

Retrieve names of statistics of a vDPA device.

There is an assumption that 'stat_names' and 'stats' arrays are matched by array index: stats_names[i].name => stats[i].value

And the array index is same with id field of 'struct rte_vdpa_stat': stats[i].id == i

Parameters

dev vDPA device pointer
stats_names array of at least size elements to be filled. If set to NULL, the function returns the required number of elements.
size The number of elements in stats_names array.

Returns

A negative value on error, otherwise the number of entries filled in the stats name array.

Retrieve statistics of a vDPA device.

There is an assumption that 'stat_names' and 'stats' arrays are matched by array index: stats_names[i].name => stats[i].value

And the array index is same with id field of 'struct rte_vdpa_stat': stats[i].id == i

Parameters

dev vDPA device pointer
qid queue id
stats A pointer to a table of structure of type rte_vdpa_stat to be filled with device statistics ids and values.
n The number of elements in stats array.

Returns

A negative value on error, otherwise the number of entries filled in the stats table.

Reset statistics of a vDPA device.

Parameters

dev vDPA device pointer
qid queue id

Returns

0 on success, a negative value on error.

Generated automatically by Doxygen for DPDK from the source code.

Version 24.11.3 DPDK