rte_dma_vchan_conf Struct Reference

#include <rte_dmadev.h>

Data Fields
enum rte_dma_direction	direction
uint16_t	nb_desc
struct rte_dma_port_param	src_port
struct rte_dma_port_param	dst_port

Detailed Description

A structure used to configure a virtual DMA channel.

See also

rte_dma_vchan_setup

Examples:

examples/dma/dmafwd.c, and examples/vhost/main.c.

Definition at line 561 of file rte_dmadev.h.

Field Documentation

direction

enum rte_dma_direction direction

Transfer direction

See also

enum rte_dma_direction

Examples:

examples/dma/dmafwd.c, and examples/vhost/main.c.

Definition at line 566 of file rte_dmadev.h.

nb_desc

uint16_t nb_desc

Number of descriptor for the virtual DMA channel

Examples:

examples/vhost/main.c.

Definition at line 568 of file rte_dmadev.h.

src_port

struct rte_dma_port_param src_port

1) Used to describes the device access port parameter in the device-to-memory transfer scenario. 2) Used to describes the source device access port parameter in the device-to-device transfer scenario.

See also

struct rte_dma_port_param

Definition at line 576 of file rte_dmadev.h.

dst_port

struct rte_dma_port_param dst_port

1) Used to describes the device access port parameter in the memory-to-device transfer scenario. 2) Used to describes the destination device access port parameter in the device-to-device transfer scenario.

See also

struct rte_dma_port_param

Definition at line 584 of file rte_dmadev.h.

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The documentation for this struct was generated from the following file:

• lib/dmadev/rte_dmadev.h